{"id":7401,"date":"2019-09-29T10:06:56","date_gmt":"2019-09-29T07:06:56","guid":{"rendered":"http:\/\/viewonphysics.gr\/?p=7401"},"modified":"2019-09-29T10:07:02","modified_gmt":"2019-09-29T07:07:02","slug":"%ce%b4%cf%85%ce%bd%ce%ac%ce%bc%ce%b5%ce%b9%cf%82-%ce%bc%ce%b5%cf%84%ce%b1%ce%be%cf%8d-%ce%b7%ce%bb%ce%b5%ce%ba%cf%84%cf%81%ce%b9%ce%ba%cf%8e%ce%bd-%cf%86%ce%bf%cf%81%cf%84%ce%af%cf%89%ce%bd-online-2","status":"publish","type":"post","link":"https:\/\/viewonphysics.gr\/?p=7401","title":{"rendered":"\u0394\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ce\u03bd \u03a6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd Online: \u03a0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ae\u03c2 \u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2"},"content":{"rendered":"<p><script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam43\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-43\"><p>\u039f\u03b9 20 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03ac\u03bd\u03c9 \u03c3\u03c4\u03b9\u03c2 \u0394\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd, \u03b5\u03af\u03bd\u03b1\u03b9 \u03a0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ae\u03c2 \u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2, \u0391\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03af\u03c7\u03b9\u03c3\u03b7\u03c2, \u03c3\u03c5\u03bc\u03c0\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7\u03c2 \u03ba.\u03c4.\u03bb. \u03ba\u03b1\u03b9 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc 1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b7 \u03ba\u03ac\u03b8\u03b5 \u03bc\u03af\u03b1. \u038c\u03c4\u03b1\u03bd \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03bf\u03c5 \u03c0\u03ac\u03c4\u03b1 \u03c4\u03bf \"\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1\" \u03ba\u03b1\u03b9 \u03b1\u03c5\u03c4\u03cc\u03bc\u03b1\u03c4\u03b1 \u03b8\u03b1 \u03b4\u03b5\u03b9\u03c2 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03b4\u03bf\u03c3\u03ae \u03c3\u03bf\u03c5.<\/p>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-43\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-522'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>\u0395\u03c0\u03af\u03bb\u03b5\u03be\u03b5 \u03c4\u03b9\u03c2\u00a0 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03b4\u03cd\u03bf \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ac \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5:<\/div><input type='hidden' name='question_id[]' id='qID_1' value='522' \/><input type='hidden' id='answerType522' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-522[]' id='answer-id-1535' class='answer   answerof-522 watupro_max_selections-2' value='1535'  onclick='return WatuPRO.maxSelections(522,2, this);' \/><label for='answer-id-1535' id='answer-label-1535' class=' answer'><span>\u039d\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03af\u03b4\u03b9\u03b5\u03c2 \u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03b4\u03cd\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ac.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-522[]' id='answer-id-1536' class='answer   answerof-522 watupro_max_selections-2' value='1536'  onclick='return WatuPRO.maxSelections(522,2, this);' \/><label for='answer-id-1536' id='answer-label-1536' class=' answer'><span>\u039d\u03b1 \u03c0\u03bb\u03b7\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 \u03af\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf 1\/2 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-522[]' id='answer-id-1537' class='answer   answerof-522 watupro_max_selections-2' value='1537'  onclick='return WatuPRO.maxSelections(522,2, this);' \/><label for='answer-id-1537' id='answer-label-1537' class=' answer'><span>\u039d\u03b1 \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf \u03ad\u03bd\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c4\u03b1 \u03b1\u03c6\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b8\u03ad\u03c3\u03b5\u03b9\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-522[]' id='answer-id-1538' class='answer   answerof-522 watupro_max_selections-2' value='1538'  onclick='return WatuPRO.maxSelections(522,2, this);' \/><label for='answer-id-1538' id='answer-label-1538' class=' answer'><span>\u039d\u03b1 \u03c4\u03b1 \u03c0\u03bb\u03b7\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 \u03af\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-b5ba5c7f268e6dcc1af149c63235ca3d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#92;&#115;&#113;&#114;&#116;&#123;&#50;&#125;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"37\" width=\"21\" style=\"vertical-align: -15px;\"\/> \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae\u03c2.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-523'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>\u0394\u03cd\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 6\u03bcC \u03c4\u03bf \u03ba\u03b1\u03b8\u03ad\u03bd\u03b1 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03bc\u03b5 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03cc\u03c4\u03b1\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 r \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5\u03c2. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03bc\u03b5 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 F \u03b4\u03cd\u03bf \u03ac\u03bb\u03bb\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 18\u03bcC \u03c4\u03bf \u03ba\u03b1\u03b8\u03ad\u03bd\u03b1, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7:<\/div><input type='hidden' name='question_id[]' id='qID_2' value='523' \/><input type='hidden' id='answerType523' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-523[]' id='answer-id-1539' class='answer   answerof-523 ' value='1539'   \/><label for='answer-id-1539' id='answer-label-1539' class=' answer'><span>r<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-523[]' id='answer-id-1540' class='answer   answerof-523 ' value='1540'   \/><label for='answer-id-1540' id='answer-label-1540' class=' answer'><span>3r<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-523[]' id='answer-id-1541' class='answer   answerof-523 ' value='1541'   \/><label for='answer-id-1541' id='answer-label-1541' class=' answer'><span>4r<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-523[]' id='answer-id-1542' class='answer   answerof-523 ' value='1542'   \/><label for='answer-id-1542' id='answer-label-1542' class=' answer'><span>9r<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-524'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>\u03a6\u03bf\u03c1\u03c4\u03af\u03bf -Q \u03ad\u03bb\u03ba\u03b5\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q, \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 r. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf q \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 3r, \u03cc\u03c0\u03c9\u03c2 \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1, \u03ac\u03bb\u03bb\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03af\u03c3\u03bf \u03bc\u03b5:<br \/>\r\n<br \/>\r\n<div id=\"attachment_7412\" style=\"width: 365px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7412\" class=\"wp-image-7412\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-1-300x65.jpg\" alt=\"\" width=\"355\" height=\"77\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-1-300x65.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-1-768x166.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-1-1024x221.jpg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-1.jpg 1025w\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" \/><\/a><p id=\"caption-attachment-7412\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 3<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_3' value='524' \/><input type='hidden' id='answerType524' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-524[]' id='answer-id-1543' class='answer   answerof-524 ' value='1543'   \/><label for='answer-id-1543' id='answer-label-1543' class=' answer'><span>3Q<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-524[]' id='answer-id-1544' class='answer   answerof-524 ' value='1544'   \/><label for='answer-id-1544' id='answer-label-1544' class=' answer'><span>-3Q<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-524[]' id='answer-id-1545' class='answer   answerof-524 ' value='1545'   \/><label for='answer-id-1545' id='answer-label-1545' class=' answer'><span>+9Q<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-524[]' id='answer-id-1546' class='answer   answerof-524 ' value='1546'   \/><label for='answer-id-1546' id='answer-label-1546' class=' answer'><span>-9Q<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-525'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>\u03a3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf 3\u03bcC \u03b1\u03c0\u03c9\u03b8\u03b5\u03af \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf, \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 r, \u03bc\u03b5 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 20\u039d. \u0391\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03bc\u03b5 15\u03bcC \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c3\u03b5 \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7, \u03c4\u03cc\u03c4\u03b5 \u03b1\u03c5\u03c4\u03cc \u03b8\u03b1 \u03b1\u03c0\u03c9\u03b8\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7:<br \/>\r\n<br \/>\r\n<div id=\"attachment_7410\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-2.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7410\" class=\"wp-image-7410\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-2-300x180.jpg\" alt=\"\" width=\"300\" height=\"180\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-2-300x180.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-2-768x461.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-2.jpg 1005w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-7410\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 4<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_4' value='525' \/><input type='hidden' id='answerType525' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-525[]' id='answer-id-1547' class='answer   answerof-525 ' value='1547'   \/><label for='answer-id-1547' id='answer-label-1547' class=' answer'><span>5\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-525[]' id='answer-id-1548' class='answer   answerof-525 ' value='1548'   \/><label for='answer-id-1548' id='answer-label-1548' class=' answer'><span>10\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-525[]' id='answer-id-1549' class='answer   answerof-525 ' value='1549'   \/><label for='answer-id-1549' id='answer-label-1549' class=' answer'><span>20\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-525[]' id='answer-id-1550' class='answer   answerof-525 ' value='1550'   \/><label for='answer-id-1550' id='answer-label-1550' class=' answer'><span>25\u039d<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-526'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>\u03a4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q \u03b1\u03c0\u03ad\u03c7\u03b5\u03b9 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 r \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03ba\u03b1\u03b9 r\/2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0392. \u03a3\u03c4\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u0391 \u03ba\u03b1\u03b9 \u0392 \u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd \u03b4\u03cd\u03bf \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ac \u03b8\u03b5\u03c4\u03b9\u03ba\u03ac \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 Q \u03ba\u03b1\u03b9 Q\/2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b1. \u0391\u03bd \u03b1\u03c6\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03b5\u03bb\u03b5\u03cd\u03b8\u03b5\u03c1\u03bf \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b7\u03b8\u03b5\u03af, \u03c4\u03cc\u03c4\u03b5 \u03b1\u03c5\u03c4\u03cc:<br \/>\r\n<br \/>\r\n<div id=\"attachment_7413\" style=\"width: 335px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-3.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7413\" class=\"wp-image-7413 \" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-3-300x95.jpg\" alt=\"\" width=\"325\" height=\"103\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-3-300x95.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-3-768x244.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-3.jpg 987w\" sizes=\"auto, (max-width: 325px) 100vw, 325px\" \/><\/a><p id=\"caption-attachment-7413\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 5<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_5' value='526' \/><input type='hidden' id='answerType526' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-526[]' id='answer-id-1551' class='answer   answerof-526 ' value='1551'   \/><label for='answer-id-1551' id='answer-label-1551' class=' answer'><span>\u0398\u03b1 \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf Q.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-526[]' id='answer-id-1552' class='answer   answerof-526 ' value='1552'   \/><label for='answer-id-1552' id='answer-label-1552' class=' answer'><span>\u0398\u03b1 \u03b1\u03c1\u03c7\u03af\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf Q\/2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-526[]' id='answer-id-1553' class='answer   answerof-526 ' value='1553'   \/><label for='answer-id-1553' id='answer-label-1553' class=' answer'><span>\u0398\u03b1 \u03c0\u03b1\u03c1\u03b1\u03bc\u03b5\u03af\u03bd\u03b5\u03b9 \u03b1\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03c3\u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c4\u03bf \u03b1\u03c6\u03ae\u03c3\u03b1\u03bc\u03b5.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-526[]' id='answer-id-1554' class='answer   answerof-526 ' value='1554'   \/><label for='answer-id-1554' id='answer-label-1554' class=' answer'><span>\u03b8\u03b1 \u03ba\u03b9\u03bd\u03b7\u03b8\u03b5\u03af \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 Q \u03ba\u03b1\u03b9 Q\/2.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-527'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>\u0395\u03c0\u03af\u03bb\u03b5\u03be\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2. \u0394\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bc\u03b5 \u03b4\u03cd\u03bf \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03b1\u03c6\u03cc\u03c1\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c6\u03b1\u03af\u03c1\u03b5\u03c2. \u0391\u03bd \u03b1\u03c1\u03c7\u03af\u03c3\u03bf\u03c5\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7 \u03bc\u03af\u03b1 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03bd\u03b1 \u03c6\u03b5\u03cd\u03b3\u03bf\u03c5\u03bd \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03cc\u03bd\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b7\u03b3\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7\u03bd \u03ac\u03bb\u03bb\u03b7, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03c3\u03c6\u03b1\u03b9\u03c1\u03ce\u03bd:<\/div><input type='hidden' name='question_id[]' id='qID_6' value='527' \/><input type='hidden' id='answerType527' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-527[]' id='answer-id-1555' class='answer   answerof-527 watupro_max_selections-2' value='1555'  onclick='return WatuPRO.maxSelections(527,2, this);' \/><label for='answer-id-1555' id='answer-label-1555' class=' answer'><span>\u0398\u03b1 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9, \u03b3\u03b9\u03b1\u03c4\u03af \u03b8\u03b1 \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03c3\u03c6\u03b1\u03b9\u03c1\u03ce\u03bd.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-527[]' id='answer-id-1556' class='answer   answerof-527 watupro_max_selections-2' value='1556'  onclick='return WatuPRO.maxSelections(527,2, this);' \/><label for='answer-id-1556' id='answer-label-1556' class=' answer'><span>\u0398\u03b1 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03ae, \u03b3\u03b9\u03b1\u03c4\u03af \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bc\u03b7\u03b4\u03ad\u03bd.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-527[]' id='answer-id-1557' class='answer   answerof-527 watupro_max_selections-2' value='1557'  onclick='return WatuPRO.maxSelections(527,2, this);' \/><label for='answer-id-1557' id='answer-label-1557' class=' answer'><span>\u0398\u03b1 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c6\u03b1\u03b9\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03cc\u03bd\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c6\u03b1\u03af\u03c1\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03c4\u03af\u03b8\u03b5\u03bd\u03c4\u03b1\u03b9.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-527[]' id='answer-id-1558' class='answer   answerof-527 watupro_max_selections-2' value='1558'  onclick='return WatuPRO.maxSelections(527,2, this);' \/><label for='answer-id-1558' id='answer-label-1558' class=' answer'><span>\u0398\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b7 \u03c4\u03bf\u03c5 \u03c4\u03b5\u03c4\u03c1\u03b1\u03b3\u03ce\u03bd\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd \u03c4\u03c9\u03bd \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03af\u03c9\u03bd \u03c0\u03bf\u03c5 \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-528'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>\u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2; \u0388\u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q \u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b5\u03c0\u03ac\u03bd\u03c9 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7.<\/div><input type='hidden' name='question_id[]' id='qID_7' value='528' \/><input type='hidden' id='answerType528' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-528[]' id='answer-id-1559' class='answer   answerof-528 watupro_max_selections-2' value='1559'  onclick='return WatuPRO.maxSelections(528,2, this);' \/><label for='answer-id-1559' id='answer-label-1559' class=' answer'><span>\u03a5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c0\u03b5\u03b4\u03af\u03bf, \u03c0\u03bf\u03c5 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03ac\u03bb\u03bb\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03ae \u03c6\u03bf\u03c1\u03c4\u03af\u03b1.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-528[]' id='answer-id-1560' class='answer   answerof-528 watupro_max_selections-2' value='1560'  onclick='return WatuPRO.maxSelections(528,2, this);' \/><label for='answer-id-1560' id='answer-label-1560' class=' answer'><span>\u03a4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03b9 \u03b1\u03c5\u03c4\u03cc \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c0\u03b5\u03b4\u03af\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-528[]' id='answer-id-1561' class='answer   answerof-528 watupro_max_selections-2' value='1561'  onclick='return WatuPRO.maxSelections(528,2, this);' \/><label for='answer-id-1561' id='answer-label-1561' class=' answer'><span>\u03a4\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03b4\u03b5\u03bd \u03b1\u03c3\u03ba\u03b5\u03af \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c3\u03b5 \u03ac\u03bb\u03bb\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03ae \u03c6\u03bf\u03c1\u03c4\u03af\u03b1, \u03b1\u03bb\u03bb\u03ac \u03bc\u03cc\u03bd\u03bf \u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-528[]' id='answer-id-1562' class='answer   answerof-528 watupro_max_selections-2' value='1562'  onclick='return WatuPRO.maxSelections(528,2, this);' \/><label for='answer-id-1562' id='answer-label-1562' class=' answer'><span>\u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf  \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf, \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ae \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af \u03c3\u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03ae \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03c0\u03bf\u03c5 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-531'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>\u03a0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03cc \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03c4\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7\u03c2 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-43edcf5c84f9fc12ac31502e206b8515_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#118;&#101;&#99;&#123;&#69;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"12\" style=\"vertical-align: 0px;\"\/> \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-363e045f26d100d031c9818cbbba8190_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#92;&#118;&#101;&#99;&#123;&#70;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"12\" style=\"vertical-align: 0px;\"\/> \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5. \u0395\u03c0\u03af\u03bb\u03b5\u03be\u03b5 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03c0\u03c1\u03cc\u03b1\u03c4\u03c3\u03b7.<br \/>\r\n<div class=\"mceTemp\"><\/div><div id=\"attachment_7422\" style=\"width: 215px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-6.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7422\" class=\"wp-image-7422\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-6-300x232.jpg\" alt=\"\" width=\"205\" height=\"159\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-6-300x232.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/07\/Electric-Forces-M-C-6.jpg 558w\" sizes=\"auto, (max-width: 205px) 100vw, 205px\" \/><\/a><p id=\"caption-attachment-7422\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 8<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_8' value='531' \/><input type='hidden' id='answerType531' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-531[]' id='answer-id-1572' class='answer   answerof-531 ' value='1572'   \/><label for='answer-id-1572' id='answer-label-1572' class=' answer'><span>\u0391\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ac \u03c4\u03bf\u03c5 -q \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-531[]' id='answer-id-1573' class='answer   answerof-531 ' value='1573'   \/><label for='answer-id-1573' id='answer-label-1573' class=' answer'><span>\u0394\u03b5\u03be\u03b9\u03ac \u03c4\u03bf\u03c5 -q \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-531[]' id='answer-id-1574' class='answer   answerof-531 ' value='1574'   \/><label for='answer-id-1574' id='answer-label-1574' class=' answer'><span>\u03a4\u03bf \u03b4\u03b9\u03ac\u03bd\u03c5\u03c3\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03cc \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-531[]' id='answer-id-1575' class='answer   answerof-531 ' value='1575'   \/><label for='answer-id-1575' id='answer-label-1575' class=' answer'><span>\u03a3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7, \u03c4\u03b1 \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03bc\u03b1\u03c4\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bb\u03ac\u03b8\u03bf\u03c2.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-534'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>\u03a4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03b5\u03bd\u03cc\u03c2 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b5\u03bd\u03c4\u03ac\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03c9\u03bd \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ac \u03b8\u03b5\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac \u03c6\u03bf\u03c1\u03c4\u03af\u03b1. \u0395\u03c0\u03af\u03bb\u03b5\u03be\u03b5 \u03c3\u03b5 \u03c0\u03bf\u03b9\u03b1 \u03b4\u03b9\u03b1\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03c3\u03c9\u03c3\u03c4\u03ac \u03c4\u03b1 \u03b4\u03b9\u03b1\u03bd\u03cd\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b5\u03bd\u03c4\u03ac\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03c9\u03bd.<\/div><input type='hidden' name='question_id[]' id='qID_9' value='534' \/><input type='hidden' id='answerType534' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-534[]' id='answer-id-1585' class='answer   answerof-534 watupro_max_selections-2' value='1585'  onclick='return WatuPRO.maxSelections(534,2, this);' \/><label for='answer-id-1585' id='answer-label-1585' class=' answer'><span><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7426 aligncenter\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-1-300x176.jpg\" alt=\"\" width=\"250\" height=\"147\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-1-300x176.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-1.jpg 723w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-534[]' id='answer-id-1586' class='answer   answerof-534 watupro_max_selections-2' value='1586'  onclick='return WatuPRO.maxSelections(534,2, this);' \/><label for='answer-id-1586' id='answer-label-1586' class=' answer'><span><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7427 aligncenter\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-2-300x171.jpg\" alt=\"\" width=\"250\" height=\"142\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-2-300x171.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-2.jpg 751w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-534[]' id='answer-id-1587' class='answer   answerof-534 watupro_max_selections-2' value='1587'  onclick='return WatuPRO.maxSelections(534,2, this);' \/><label for='answer-id-1587' id='answer-label-1587' class=' answer'><span><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7428 aligncenter\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-3-300x144.jpg\" alt=\"\" width=\"250\" height=\"120\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-3-300x144.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-3-768x370.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-3.jpg 839w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-534[]' id='answer-id-1588' class='answer   answerof-534 watupro_max_selections-2' value='1588'  onclick='return WatuPRO.maxSelections(534,2, this);' \/><label for='answer-id-1588' id='answer-label-1588' class=' answer'><span><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7429 aligncenter\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-4-300x177.jpg\" alt=\"\" width=\"250\" height=\"147\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-4-300x177.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-4-768x453.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-7-4.jpg 840w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-535'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>\u03a4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf +Q \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c0\u03b5\u03b4\u03af\u03bf, \u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391, \u03c0\u03bf\u03c5 \u03b1\u03c0\u03ad\u03c7\u03b5\u03b9 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 r \u03b1\u03c0\u03cc \u03c4\u03bf +Q,\u00a0 \u03ad\u03c7\u03b5\u03b9 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 50\u039d\/C. \u0391\u03bd \u03c3\u03b5 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03c1\u03b9\u03ba\u03ae \u03b8\u03ad\u03c3\u03b7 \u03c4\u03bf\u03c5 +Q \u03c9\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u0391 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf -Q, \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ad\u03c4\u03c1\u03bf \u03c4\u03b7\u03c2 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf \u0391 \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9:<br \/>\r\n<br \/>\r\n<div id=\"attachment_7431\" style=\"width: 404px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-8.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7431\" class=\"wp-image-7431\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-8-300x64.jpg\" alt=\"\" width=\"394\" height=\"84\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-8-300x64.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-8-768x163.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-8-1024x218.jpg 1024w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-8.jpg 1039w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/a><p id=\"caption-attachment-7431\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 11<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_10' value='535' \/><input type='hidden' id='answerType535' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-535[]' id='answer-id-1589' class='answer   answerof-535 ' value='1589'   \/><label for='answer-id-1589' id='answer-label-1589' class=' answer'><span>0\u039d<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-535[]' id='answer-id-1590' class='answer   answerof-535 ' value='1590'   \/><label for='answer-id-1590' id='answer-label-1590' class=' answer'><span>25\u039d\/C<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-535[]' id='answer-id-1591' class='answer   answerof-535 ' value='1591'   \/><label for='answer-id-1591' id='answer-label-1591' class=' answer'><span>50N\/C<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-535[]' id='answer-id-1592' class='answer   answerof-535 ' value='1592'   \/><label for='answer-id-1592' id='answer-label-1592' class=' answer'><span>100N\/C<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-11' style=';'><div id='questionWrap-11'  class='   watupro-question-id-537'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>\u0397 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 300\u039d\/C, \u03b5\u03bd\u03ce \u03c3\u03b5 \u03ac\u03bb\u03bb\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0392 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 1200\u039d\/C. \u03a3\u03c4\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u0391 \u03ba\u03b1\u03b9 \u0392 \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03b4\u03cd\u03bf \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ac \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 q<sub>1<\/sub> \u03ba\u03b1\u03b9 q<sub>2<\/sub> \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03b1\u03c5\u03c4\u03ac \u03b4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf \u03af\u03c3\u03b5\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2. \u0395\u03c0\u03af\u03bb\u03b5\u03be\u03b5 \u03c4\u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03c0\u03c1\u03cc\u03c4\u03b1\u03c3\u03b7.<\/div><input type='hidden' name='question_id[]' id='qID_11' value='537' \/><input type='hidden' id='answerType537' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-537[]' id='answer-id-1597' class='answer   answerof-537 ' value='1597'   \/><label for='answer-id-1597' id='answer-label-1597' class=' answer'><span>\u03a4\u03bf \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c0\u03b5\u03b4\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03bc\u03bf\u03b3\u03b5\u03bd\u03ad\u03c2.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-537[]' id='answer-id-1598' class='answer   answerof-537 ' value='1598'   \/><label for='answer-id-1598' id='answer-label-1598' class=' answer'><span>\u03a4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc \u03c3\u03c4\u03bf \u0391 \u03b1\u03c0\u03cc \u03cc,\u03c4\u03b9 \u03c3\u03c4\u03bf \u0392.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-537[]' id='answer-id-1599' class='answer   answerof-537 ' value='1599'   \/><label for='answer-id-1599' id='answer-label-1599' class=' answer'><span>\u0395\u03af\u03bd\u03b1\u03b9 q<sub>1<\/sub>=4q<sub>2<\/sub>.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-537[]' id='answer-id-1600' class='answer   answerof-537 ' value='1600'   \/><label for='answer-id-1600' id='answer-label-1600' class=' answer'><span>\u03a4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ac \u03c6\u03bf\u03c1\u03c4\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03c3\u03b1, \u03b3\u03b9\u03b1\u03c4\u03af \u03b4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03af\u03c3\u03b5\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-12' style=';'><div id='questionWrap-12'  class='   watupro-question-id-539'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>\u03a3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03bd\u03cc\u03c2 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5, \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 300\u039d\/C, \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q<sub>1<\/sub>. \u0391\u03bd \u03c3\u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q<sub>2<\/sub> \u03ba\u03b1\u03b9 \u03b4\u03b5\u03c7\u03c4\u03b5\u03af \u03c4\u03b5\u03c4\u03c1\u03b1\u03c0\u03bb\u03ac\u03c3\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ae \u03c0\u03bf\u03c5 \u03b4\u03b5\u03c7\u03cc\u03c4\u03b1\u03bd \u03c4\u03bf q<sub>1<\/sub>, \u03c4\u03cc\u03c4\u03b5:<\/div><input type='hidden' name='question_id[]' id='qID_12' value='539' \/><input type='hidden' id='answerType539' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-539[]' id='answer-id-1605' class='answer   answerof-539 ' value='1605'   \/><label for='answer-id-1605' id='answer-label-1605' class=' answer'><span>q<sub>1<\/sub>=q<sub>2<\/sub>, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03c4\u03bf \u03af\u03b4\u03b9\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-539[]' id='answer-id-1606' class='answer   answerof-539 ' value='1606'   \/><label for='answer-id-1606' id='answer-label-1606' class=' answer'><span>q<sub>2<\/sub>=q<sub>1<\/sub>\/4, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03c1\u03cc\u03c6\u03c9\u03c2 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03b9\u03c3\u03b1\u03b3\u03cc\u03bc\u03b5\u03bd\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-539[]' id='answer-id-1607' class='answer   answerof-539 ' value='1607'   \/><label for='answer-id-1607' id='answer-label-1607' class=' answer'><span>\u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03af\u03b4\u03b9\u03b1, \u03bf\u03c0\u03bf\u03b9\u03bf\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q<sub>2<\/sub> \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03b8\u03b1 \u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5 \u03c4\u03bf q<sub>1<\/sub>.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-539[]' id='answer-id-1608' class='answer   answerof-539 ' value='1608'   \/><label for='answer-id-1608' id='answer-label-1608' class=' answer'><span>q<sub>2<\/sub>=4q<sub>1<\/sub>, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03b9\u03c3\u03b1\u03b3\u03cc\u03bc\u03b5\u03bd\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5, \u03cc\u03c4\u03b1\u03bd \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03af\u03b4\u03b9\u03b1.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-13' style=';'><div id='questionWrap-13'  class='   watupro-question-id-532'>\n\t\t\t<div class='question-content'><span class='watupro_num'>13. <\/span>\u0391\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03af\u03c7\u03b9\u03c3\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c7\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae\u03c2 \u03c3\u03c4\u03ae\u03bb\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03c0\u03bf\u03c5 \u03bc\u03b5\u03c4\u03c1\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7 \u03b4\u03b5\u03be\u03b9\u03ac.<div class='question-choices'><table class=\"question-choices watupro-matrix-droppable\" id=\"watuPROMatrixDroppable_532\"><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-33f5c2b9b2f92cf92fafa4f30e29a943_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#107;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#81;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#113;&#125;&#123;&#114;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"49\" style=\"vertical-align: -13px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable532\" id=\"watuPRODroppableCell1580\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-0-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1580', 0);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD5f8d79972ceca78e49b5eb99ea92f284b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1580', 1);return false;\">\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1<!--WTPMD560006fb5527c3dc267c9b11e2512ae73--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1580', 2);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd<!--WTPMD5d40b94f8303c88f79742dd2a3af27460--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-0-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1580', 3);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD571989299175de6e5a5aa3fc8a32ffa94--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-532 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1580\" name=\"matrix-left-1580\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-c1ae8d876ac52283926ec3203e0d0968_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#107;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#81;&#32;&#125;&#123;&#114;&#94;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"29\" style=\"vertical-align: -13px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable532\" id=\"watuPRODroppableCell1581\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-1-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1581', 0);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD5f8d79972ceca78e49b5eb99ea92f284b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1581', 1);return false;\">\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1<!--WTPMD560006fb5527c3dc267c9b11e2512ae73--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1581', 2);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd<!--WTPMD5d40b94f8303c88f79742dd2a3af27460--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-1-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1581', 3);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD571989299175de6e5a5aa3fc8a32ffa94--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-532 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1581\" name=\"matrix-left-1581\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-d921fedf167a8484eb73d52992397f67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#69;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#113;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"38\" style=\"vertical-align: -4px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable532\" id=\"watuPRODroppableCell1582\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-2-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1582', 0);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD5f8d79972ceca78e49b5eb99ea92f284b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1582', 1);return false;\">\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1<!--WTPMD560006fb5527c3dc267c9b11e2512ae73--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1582', 2);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd<!--WTPMD5d40b94f8303c88f79742dd2a3af27460--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-2-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1582', 3);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD571989299175de6e5a5aa3fc8a32ffa94--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-532 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1582\" name=\"matrix-left-1582\" value=\"\"><\/td><\/tr><tr><td class=\"watupro-matrix-left-cell\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/viewonphysics.gr\/wp-content\/ql-cache\/quicklatex.com-a2800d7c64fbe8f4fab285a075a18c4b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#100;&#105;&#115;&#112;&#108;&#97;&#121;&#115;&#116;&#121;&#108;&#101;&#32;&#107;&#32;&#92;&#102;&#114;&#97;&#99;&#123;&#81;&#32;&#92;&#99;&#100;&#111;&#116;&#32;&#113;&#125;&#123;&#114;&#94;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"49\" style=\"vertical-align: -13px;\"\/><\/td>\n\t\t\t\t\t\t<td class=\"watupro-matrix-right-cell watuPRODroppable532\" id=\"watuPRODroppableCell1583\"><div class='question-choices'><div class=\"watupro-matrix-right\"><div id=\"watuproNMatrixSelection-3-0\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-0\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1583', 0);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD5f8d79972ceca78e49b5eb99ea92f284b--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-1\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-1\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1583', 1);return false;\">\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u0395\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1<!--WTPMD560006fb5527c3dc267c9b11e2512ae73--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-2\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-2\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1583', 2);return false;\">\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03ce\u03bd \u03c6\u03bf\u03c1\u03c4\u03af\u03c9\u03bd<!--WTPMD5d40b94f8303c88f79742dd2a3af27460--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><div id=\"watuproNMatrixSelection-3-3\" class=\" watupro-matrix-draggable watupro-nmatrix-answer-3\" onclick=\"WatuPROINMatrix.sel(this, 'watuPRODroppableCell1583', 3);return false;\">\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03a0\u03b5\u03b4\u03af\u03bf\u03c5<!--WTPMD571989299175de6e5a5aa3fc8a32ffa94--><p class=\"watupro-nmatrix-unselect\">Unselect<\/p><\/div><\/div><\/div><input type=\"hidden\" class=\"answerof-532 watupro-nmatrix-answer-field\"  id=\"field-watuPRODroppableCell1583\" name=\"matrix-left-1583\" value=\"\"><\/td><\/tr><\/table><\/div><input type='hidden' name='question_id[]' id='qID_13' value='532' \/><input type='hidden' id='answerType532' value='nmatrix'><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-14' style=';'><div id='questionWrap-14'  class='   watupro-question-id-540'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>\u0386\u03bd\u03bf\u03b9\u03be\u03b5 \u03bc\u03b5 \u03ba\u03bb\u03b9\u03ba \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03ba\u03ac\u03c1\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03ac\u03c6\u03b7\u03c3\u03b5 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03ad\u03c2 \u03cc\u03c3\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bb\u03ac\u03b8\u03bf\u03c2.<\/div><input type='hidden' name='question_id[]' id='qID_14' value='540' \/><input type='hidden' id='answerType540' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div id='watuproFlashcard-1609' onclick=\"WatuPROFlipCard('1609');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0394\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf.<\/div><\/div><div id='watuproFlashcard-1610' onclick=\"WatuPROFlipCard('1610');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ad\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03b7\u03bb. \u03c0\u03b5\u03b4\u03af\u03bf\u03c5<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u039f\u03b9 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c4\u03bf\u03c5\u03c2 \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03b4\u03b9\u03b1.<\/div><\/div><div id='watuproFlashcard-1611' onclick=\"WatuPROFlipCard('1611');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u0397 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b1\u03c5\u03c4\u03cc.<\/div><\/div><div id='watuproFlashcard-1612' onclick=\"WatuPROFlipCard('1612');\" class='watupro_flashcard' style='width:150px;height:180px; border-radius:5%;'><div class='watupro_front_face front' style='background-color:#ff0000;border-radius:5%;color:#ffff00;font-size:16px;'>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5<\/div>\n\t\t\t<div class='watupro_back_face back' style='background-color:#008000;border-radius:5%;color:#ffffff;font-size:14px;'>\u03a4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03bc\u03ac\u03ba\u03c1\u03c5\u03bd\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5.<\/div><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-540[]' id='answer-id-1609' class='answer   answerof-540 ' value='1609'   \/><label for='answer-id-1609' id='answer-label-1609' class=' answer'><span>\u0388\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5=\u0394\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-540[]' id='answer-id-1610' class='answer   answerof-540 ' value='1610'   \/><label for='answer-id-1610' id='answer-label-1610' class=' answer'><span>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ad\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03b7\u03bb. \u03c0\u03b5\u03b4\u03af\u03bf\u03c5=\u039f\u03b9 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c4\u03bf\u03c5\u03c2 \u03b7 \u03ad\u03bd\u03c4\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03af\u03b4\u03b9\u03b1.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-540[]' id='answer-id-1611' class='answer   answerof-540 ' value='1611'   \/><label for='answer-id-1611' id='answer-label-1611' class=' answer'><span>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf=\u0397 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b1\u03c5\u03c4\u03cc.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' style=\"display:none;\"><input type='checkbox' name='answer-540[]' id='answer-id-1612' class='answer   answerof-540 ' value='1612'   \/><label for='answer-id-1612' id='answer-label-1612' class=' answer'><span>\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5=\u03a4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03bc\u03ac\u03ba\u03c1\u03c5\u03bd\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-15' style=';'><div id='questionWrap-15'  class='   watupro-question-id-541'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>\u0395\u03c0\u03af\u03bb\u03b5\u03be\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2. \u03a4\u03bf \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 1000V. \u0391\u03c5\u03c4\u03cc \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9:<\/div><input type='hidden' name='question_id[]' id='qID_15' value='541' \/><input type='hidden' id='answerType541' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-541[]' id='answer-id-1613' class='answer   answerof-541 watupro_max_selections-2' value='1613'  onclick='return WatuPRO.maxSelections(541,2, this);' \/><label for='answer-id-1613' id='answer-label-1613' class=' answer'><span>\u0397 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf \u0391 \u03b5\u03af\u03bd\u03b1\u03b9 1000J.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-541[]' id='answer-id-1614' class='answer   answerof-541 watupro_max_selections-2' value='1614'  onclick='return WatuPRO.maxSelections(541,2, this);' \/><label for='answer-id-1614' id='answer-label-1614' class=' answer'><span>\u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03ad\u03c1\u03b3\u03bf 1000J \u03b3\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 1C \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c0\u03bf\u03c5 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-541[]' id='answer-id-1615' class='answer   answerof-541 watupro_max_selections-2' value='1615'  onclick='return WatuPRO.maxSelections(541,2, this);' \/><label for='answer-id-1615' id='answer-label-1615' class=' answer'><span>\u0393\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c0\u03bf\u03c5 \u03b5\u03b9\u03c3\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b1\u03bd\u03ac \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 1000J\/C.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-541[]' id='answer-id-1616' class='answer   answerof-541 watupro_max_selections-2' value='1616'  onclick='return WatuPRO.maxSelections(541,2, this);' \/><label for='answer-id-1616' id='answer-label-1616' class=' answer'><span>\u03a3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03c0\u03bf\u03c5 \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 1000\u039d\/C.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-16' style=';'><div id='questionWrap-16'  class='   watupro-question-id-542'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>\u03a3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391, \u03c0\u03bf\u03c5 \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 r \u03b1\u03c0\u03cc \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf-\u03c0\u03b7\u03b3\u03ae Q, \u03b5\u03b9\u03c3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q. \u038c\u03c4\u03b1\u03bd \u03c4\u03bf q \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5, \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03ad\u03c1\u03b3\u03bf 100J. \u0391\u03bd \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q \u03c4\u03bf \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c0\u03cc \u03c4\u03bf \u0391 \u03c3\u03c4\u03bf \u0392, \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9:<br \/>\r\n<br \/>\r\n<div id=\"attachment_7439\" style=\"width: 330px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-9.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7439\" class=\"wp-image-7439\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-9-300x181.jpg\" alt=\"\" width=\"320\" height=\"193\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-9-300x181.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-9-768x463.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-9.jpg 880w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><p id=\"caption-attachment-7439\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 16<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_16' value='542' \/><input type='hidden' id='answerType542' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-542[]' id='answer-id-1617' class='answer   answerof-542 ' value='1617'   \/><label for='answer-id-1617' id='answer-label-1617' class=' answer'><span>50J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-542[]' id='answer-id-1618' class='answer   answerof-542 ' value='1618'   \/><label for='answer-id-1618' id='answer-label-1618' class=' answer'><span>100J<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-542[]' id='answer-id-1619' class='answer   answerof-542 ' value='1619'   \/><label for='answer-id-1619' id='answer-label-1619' class=' answer'><span>150I<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-542[]' id='answer-id-1620' class='answer   answerof-542 ' value='1620'   \/><label for='answer-id-1620' id='answer-label-1620' class=' answer'><span>200J<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-17' style=';'><div id='questionWrap-17'  class='   watupro-question-id-543'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>\u03a3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q=1\u03bcC \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0392 \u03bc\u03ad\u03c3\u03b1 \u03c3\u03b5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03cc \u03c0\u03b5\u03b4\u03af\u03bf. \u0397 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03ad\u03c3\u03c9 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae\u03c2 \u0399 \u03ae \u03bc\u03ad\u03c3\u03c9 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae\u03c2 \u0399\u0399. \u0388\u03c3\u03c4\u03c9 W<sub>I<\/sub> \u03ba\u03b1\u03b9 W<sub>II<\/sub> \u03c4\u03b1 \u03ad\u03c1\u03b3\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5 q \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u0399 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u0399\u0399 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b1. \u03a0\u03bf\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ae;<br \/>\r\n<br \/>\r\n<div id=\"attachment_7441\" style=\"width: 400px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7441\" class=\" wp-image-7441\" src=\"http:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-10-300x220.jpg\" alt=\"\" width=\"390\" height=\"286\" srcset=\"https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-10-300x220.jpg 300w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-10-768x563.jpg 768w, https:\/\/viewonphysics.gr\/wp-content\/uploads\/2019\/08\/Electric-Forces-M-C-10.jpg 785w\" sizes=\"auto, (max-width: 390px) 100vw, 390px\" \/><p id=\"caption-attachment-7441\" class=\"wp-caption-text\">\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 17<\/p><\/div><\/div><input type='hidden' name='question_id[]' id='qID_17' value='543' \/><input type='hidden' id='answerType543' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-543[]' id='answer-id-1621' class='answer   answerof-543 watupro_max_selections-2' value='1621'  onclick='return WatuPRO.maxSelections(543,2, this);' \/><label for='answer-id-1621' id='answer-label-1621' class=' answer'><span>W<sub>I<\/sub> < W<sub>II<\/sub><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-543[]' id='answer-id-1622' class='answer   answerof-543 watupro_max_selections-2' value='1622'  onclick='return WatuPRO.maxSelections(543,2, this);' \/><label for='answer-id-1622' id='answer-label-1622' class=' answer'><span>W<sub>I<\/sub>=W<sub>II<\/sub><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-543[]' id='answer-id-1623' class='answer   answerof-543 watupro_max_selections-2' value='1623'  onclick='return WatuPRO.maxSelections(543,2, this);' \/><label for='answer-id-1623' id='answer-label-1623' class=' answer'><span>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03ad\u03c1\u03b3\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03b1\u03bd \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b1 \u03bc\u03ae\u03ba\u03b7 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ce\u03bd.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-543[]' id='answer-id-1624' class='answer   answerof-543 watupro_max_selections-2' value='1624'  onclick='return WatuPRO.maxSelections(543,2, this);' \/><label for='answer-id-1624' id='answer-label-1624' class=' answer'><span>\u0391\u03bd \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u0391 \u03ba\u03b1\u03b9 \u0392 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03b2\u03c1\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b1 \u03ad\u03c1\u03b3\u03b1 W<sub>I<\/sub> \u03ba\u03b1\u03b9 W<sub>II<\/sub>.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-18' style=';'><div id='questionWrap-18'  class='   watupro-question-id-546'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>\u038c\u03c4\u03b1\u03bd \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc \u03b4\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0392 \u03bc\u03ad\u03c3\u03b1 \u03c3\u03b5 \u03c0\u03b5\u03b4\u03af\u03bf \u03c0\u03bf\u03c5 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03c3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf +Q, \u03b7 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2;<\/div><input type='hidden' name='question_id[]' id='qID_18' value='546' \/><input type='hidden' id='answerType546' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-546[]' id='answer-id-1633' class='answer   answerof-546 watupro_max_selections-2' value='1633'  onclick='return WatuPRO.maxSelections(546,2, this);' \/><label for='answer-id-1633' id='answer-label-1633' class=' answer'><span>\u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03ad\u03c1\u03b3\u03bf.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-546[]' id='answer-id-1634' class='answer   answerof-546 watupro_max_selections-2' value='1634'  onclick='return WatuPRO.maxSelections(546,2, this);' \/><label for='answer-id-1634' id='answer-label-1634' class=' answer'><span>\u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bc\u03b5 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03b7 \u03bc\u03b5\u03c4\u03b1\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 q.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-546[]' id='answer-id-1635' class='answer   answerof-546 watupro_max_selections-2' value='1635'  onclick='return WatuPRO.maxSelections(546,2, this);' \/><label for='answer-id-1635' id='answer-label-1635' class=' answer'><span>\u0397 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03c3\u03b7\u03bc\u03b5\u03af\u03c9\u03bd \u0391 \u03ba\u03b1\u03b9 \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-546[]' id='answer-id-1636' class='answer   answerof-546 watupro_max_selections-2' value='1636'  onclick='return WatuPRO.maxSelections(546,2, this);' \/><label for='answer-id-1636' id='answer-label-1636' class=' answer'><span>\u03a4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q \u03b1\u03c0\u03bf\u03bc\u03b1\u03ba\u03c1\u03cd\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf Q \u03c0\u03bf\u03c5 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-19' style=';'><div id='questionWrap-19'  class='   watupro-question-id-544'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>\u03a3\u03b7\u03bc\u03b5\u03b9\u03b1\u03ba\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf q=1\u03bcC \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd +V \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03b4\u03b9\u03c0\u03bb\u03ac\u03c3\u03b9\u03bf\u03c5 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd. \u03a0\u03bf\u03b9\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ad\u03c2:<\/div><input type='hidden' name='question_id[]' id='qID_19' value='544' \/><input type='hidden' id='answerType544' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-544[]' id='answer-id-1625' class='answer   answerof-544 watupro_max_selections-2' value='1625'  onclick='return WatuPRO.maxSelections(544,2, this);' \/><label for='answer-id-1625' id='answer-label-1625' class=' answer'><span>\u0397 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b8\u03b5\u03c4\u03b9\u03ba\u03ae.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-544[]' id='answer-id-1626' class='answer   answerof-544 watupro_max_selections-2' value='1626'  onclick='return WatuPRO.maxSelections(544,2, this);' \/><label for='answer-id-1626' id='answer-label-1626' class=' answer'><span>\u0397 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 q \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-544[]' id='answer-id-1627' class='answer   answerof-544 watupro_max_selections-2' value='1627'  onclick='return WatuPRO.maxSelections(544,2, this);' \/><label for='answer-id-1627' id='answer-label-1627' class=' answer'><span>\u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03ad\u03c1\u03b3\u03bf \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03bc\u03b5\u03c4\u03b1\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 q.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-544[]' id='answer-id-1628' class='answer   answerof-544 watupro_max_selections-2' value='1628'  onclick='return WatuPRO.maxSelections(544,2, this);' \/><label for='answer-id-1628' id='answer-label-1628' class=' answer'><span>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c3\u03ba\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03bf q \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7. <\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-20' style=';'><div id='questionWrap-20'  class='   watupro-question-id-545'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>\u039a\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 2\u03bcC \u03b1\u03c0\u03cc \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0391 \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u0392 \u03b5\u03bd\u03c4\u03cc\u03c2 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03b4\u03af\u03bf\u03c5, \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 1,5\u00b710<sup>-3<\/sup>J. \u0391\u03bd \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf -5\u03bcC \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03af\u03b4\u03b9\u03c9\u03bd \u03c3\u03b7\u03bc\u03b5\u03af\u03c9\u03bd, \u03c4\u03bf \u03ad\u03c1\u03b3\u03bf \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c0\u03b5\u03b4\u03af\u03bf\u03c5 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9:<\/div><input 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