{"id":6856,"date":"2026-03-20T14:36:18","date_gmt":"2026-03-20T14:36:18","guid":{"rendered":"https:\/\/vartmaaninstitutesirsa.com\/?page_id=6856"},"modified":"2026-03-20T15:41:11","modified_gmt":"2026-03-20T15:41:11","slug":"chapter-1-electric-charges-and-fields-online-neet-test","status":"publish","type":"page","link":"https:\/\/vartmaaninstitutesirsa.com\/index.php\/chapter-1-electric-charges-and-fields-online-neet-test\/","title":{"rendered":"CHAPTER 1: Electric Charges and Fields Online Neet Test"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6856\" class=\"elementor elementor-6856\">\n\t\t\t\t<div class=\"elementor-element elementor-element-21db900 e-flex e-con-boxed e-con e-parent\" data-id=\"21db900\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e223cd6 elementor-widget elementor-widget-html\" data-id=\"e223cd6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\r\n    * {\r\n        margin: 0;\r\n        padding: 0;\r\n        box-sizing: border-box;\r\n    }\r\n\r\n    body, .elementor-widget-container {\r\n        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\r\n    }\r\n\r\n    .vi-neet-wrap {\r\n        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);\r\n        min-height: 100vh;\r\n        padding: 20px;\r\n        color: #212121;\r\n    }\r\n\r\n    .vi-container {\r\n        max-width: 900px;\r\n        margin: 0 auto;\r\n    }\r\n\r\n    .vi-header {\r\n        text-align: center;\r\n        color: white;\r\n        margin-bottom: 30px;\r\n    }\r\n\r\n    .vi-header h1 {\r\n        font-size: 2.5rem;\r\n        margin-bottom: 10px;\r\n        font-weight: 700;\r\n    }\r\n\r\n    .vi-header p {\r\n        font-size: 1rem;\r\n        color: #e0e0e0;\r\n    }\r\n\r\n    .vi-header .vi-logo-tagline {\r\n        font-size: 0.85rem;\r\n        color: #ffd54f;\r\n        margin-top: 6px;\r\n        letter-spacing: 0.5px;\r\n    }\r\n\r\n    .vi-badge {\r\n        display: inline-block;\r\n        background: #d32f2f;\r\n        color: white;\r\n        padding: 8px 16px;\r\n        border-radius: 20px;\r\n        font-size: 0.9rem;\r\n        font-weight: 600;\r\n        margin-top: 10px;\r\n    }\r\n\r\n    .vi-card {\r\n        background: white;\r\n        border-radius: 12px;\r\n        padding: 40px;\r\n        box-shadow: 0 20px 40px rgba(0,0,0,0.3);\r\n        margin-bottom: 20px;\r\n    }\r\n\r\n    .vi-form-group {\r\n        margin-bottom: 20px;\r\n    }\r\n\r\n    .vi-form-group label {\r\n        display: block;\r\n        margin-bottom: 8px;\r\n        font-weight: 600;\r\n        color: #212121;\r\n    }\r\n\r\n    .vi-form-group input,\r\n    .vi-form-group textarea {\r\n        width: 100%;\r\n        padding: 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#fef3c7;\r\n        padding: 16px;\r\n        border-radius: 8px;\r\n        margin-bottom: 20px;\r\n        display: flex;\r\n        justify-content: space-between;\r\n        align-items: center;\r\n        border-left: 4px solid #f57c00;\r\n    }\r\n\r\n    .vi-timer-value {\r\n        font-size: 1.8rem;\r\n        font-weight: 700;\r\n        color: #d32f2f;\r\n        font-family: 'Courier New', monospace;\r\n    }\r\n\r\n    .vi-progress-bar {\r\n        width: 100%;\r\n        height: 8px;\r\n        background: #e0e0e0;\r\n        border-radius: 4px;\r\n        overflow: hidden;\r\n        margin-bottom: 20px;\r\n    }\r\n\r\n    .vi-progress-fill {\r\n        height: 100%;\r\n        background: linear-gradient(90deg, #d32f2f, #f57c00);\r\n        transition: width 0.3s;\r\n    }\r\n\r\n    .vi-question-card {\r\n        padding: 24px;\r\n        background: #fff3e0;\r\n        border-radius: 12px;\r\n        border-left: 4px solid #d32f2f;\r\n        margin-bottom: 32px;\r\n 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100%;\r\n        aspect-ratio: 1;\r\n        padding: 0;\r\n        display: flex;\r\n        align-items: center;\r\n        justify-content: center;\r\n        border: 2px solid #e0e0e0;\r\n        background: white;\r\n        border-radius: 6px;\r\n        cursor: pointer;\r\n        font-weight: 600;\r\n        font-size: 0.8rem;\r\n        transition: all 0.3s;\r\n        font-family: inherit;\r\n    }\r\n\r\n    .vi-nav-button.active {\r\n        background: #d32f2f;\r\n        color: white;\r\n        border-color: #d32f2f;\r\n    }\r\n\r\n    .vi-nav-button.answered {\r\n        background: #388e3c;\r\n        color: white;\r\n        border-color: #388e3c;\r\n    }\r\n\r\n    .vi-email-status {\r\n        text-align: center;\r\n        margin-bottom: 20px;\r\n        font-weight: 600;\r\n        font-size: 0.95rem;\r\n    }\r\n\r\n    .vi-email-status.sending { color: #f57c00; }\r\n    .vi-email-status.sent    { color: #388e3c; }\r\n    .vi-email-status.failed  { color: #d32f2f; }\r\n\r\n    @media (max-width: 768px) {\r\n        .vi-question-navigation {\r\n            grid-template-columns: repeat(6, 1fr);\r\n        }\r\n        .vi-header h1 {\r\n            font-size: 1.8rem;\r\n        }\r\n        .vi-card {\r\n            padding: 20px;\r\n        }\r\n    }\r\n<\/style>\r\n\r\n<div class=\"vi-neet-wrap\">\r\n    <div class=\"vi-container\">\r\n\r\n        <!-- HEADER -->\r\n        <div class=\"vi-header\">\r\n            <h1>\u26a1 NEET Physics Test<\/h1>\r\n            <p>Electric Force &amp; Field \u2014 Chapter 1<\/p>\r\n            <p class=\"vi-logo-tagline\">vartmaaninstitutesirsa.com<\/p>\r\n            <div class=\"vi-badge\">30 Questions | 1 Hour<\/div>\r\n        <\/div>\r\n\r\n        <!-- LOGIN SECTION -->\r\n        <div id=\"vi-loginSection\" class=\"vi-card\">\r\n            <h2 style=\"margin-bottom:24px;text-align:center;color:#d32f2f;\">Student Registration<\/h2>\r\n            <div id=\"vi-loginForm\">\r\n                <div class=\"vi-form-group\">\r\n                    <label for=\"vi-studentName\">Full Name *<\/label>\r\n                    <input type=\"text\" id=\"vi-studentName\" required placeholder=\"Enter your full name\" autocomplete=\"name\">\r\n                <\/div>\r\n                <div class=\"vi-form-group\">\r\n                    <label for=\"vi-studentEmail\">Email Address *<\/label>\r\n                    <input type=\"email\" id=\"vi-studentEmail\" required placeholder=\"Enter your email\" autocomplete=\"email\">\r\n                <\/div>\r\n                <div class=\"vi-form-group\">\r\n                    <label for=\"vi-studentPhone\">Phone Number *<\/label>\r\n                    <input type=\"tel\" id=\"vi-studentPhone\" required placeholder=\"10-digit mobile number\" pattern=\"[0-9]{10}\">\r\n                <\/div>\r\n                <div class=\"vi-form-group\">\r\n                    <label for=\"vi-studentClass\">Class\/Stream *<\/label>\r\n                    <input type=\"text\" id=\"vi-studentClass\" required placeholder=\"e.g., 11th PCB\">\r\n                <\/div>\r\n                <div class=\"vi-form-group\">\r\n                    <label for=\"vi-studentAddress\">Address *<\/label>\r\n                    <textarea id=\"vi-studentAddress\" required placeholder=\"Enter your complete address\" rows=\"3\"><\/textarea>\r\n                <\/div>\r\n                <button type=\"button\" class=\"vi-btn vi-btn-primary\" onclick=\"viStartTest()\">Start Test \u2192<\/button>\r\n            <\/div>\r\n        <\/div>\r\n\r\n        <!-- TEST SECTION -->\r\n        <div id=\"vi-testSection\" class=\"vi-hidden\">\r\n            <div class=\"vi-card\">\r\n                <div class=\"vi-timer\">\r\n                    <span>\u23f1\ufe0f Time Remaining:<\/span>\r\n                    <span class=\"vi-timer-value\"><span id=\"vi-hours\">01<\/span>:<span id=\"vi-minutes\">00<\/span>:<span id=\"vi-seconds\">00<\/span><\/span>\r\n                <\/div>\r\n                <div class=\"vi-progress-info\">\r\n                    <span>Question Progress<\/span>\r\n                    <span id=\"vi-progressText\">0\/30<\/span>\r\n                <\/div>\r\n                <div class=\"vi-progress-bar\">\r\n                    <div class=\"vi-progress-fill\" id=\"vi-progressFill\" style=\"width:0%\"><\/div>\r\n                <\/div>\r\n                <div class=\"vi-question-navigation\" id=\"vi-navigationContainer\"><\/div>\r\n                <div id=\"vi-questionsContainer\"><\/div>\r\n                <div class=\"vi-nav-buttons\">\r\n                    <button type=\"button\" class=\"vi-nav-btn\" id=\"vi-prevBtn\" onclick=\"viPreviousQuestion()\">\u2190 Previous<\/button>\r\n                    <button type=\"button\" class=\"vi-nav-btn\" id=\"vi-nextBtn\" onclick=\"viNextQuestion()\">Next \u2192<\/button>\r\n                    <button type=\"button\" class=\"vi-nav-btn submit\" id=\"vi-submitBtn\" onclick=\"viSubmitTest()\">SUBMIT TEST<\/button>\r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n\r\n        <!-- RESULTS SECTION -->\r\n        <div id=\"vi-resultsSection\" class=\"vi-hidden\">\r\n            <div class=\"vi-card\">\r\n                <div class=\"vi-results-header\">\r\n                    <div class=\"vi-score-circle\">\r\n                        <div class=\"vi-score-val\"><span id=\"vi-scorePercentage\">0<\/span>%<\/div>\r\n                    <\/div>\r\n                    <h2 class=\"vi-results-title\" id=\"vi-resultTitle\">Test Complete!<\/h2>\r\n                    <p id=\"vi-resultMessage\" style=\"font-size:1.1rem;color:#666;\">Your results have been recorded.<\/p>\r\n                <\/div>\r\n                <div class=\"vi-stats-grid\">\r\n                    <div class=\"vi-stat-box\">\r\n                        <div class=\"vi-stat-value\" id=\"vi-correctCount\">0<\/div>\r\n                        <div class=\"vi-stat-label\">Correct<\/div>\r\n                    <\/div>\r\n                    <div class=\"vi-stat-box\">\r\n                        <div class=\"vi-stat-value\" id=\"vi-incorrectCount\">0<\/div>\r\n                        <div class=\"vi-stat-label\">Incorrect<\/div>\r\n                    <\/div>\r\n                    <div class=\"vi-stat-box\">\r\n                        <div class=\"vi-stat-value\" id=\"vi-skippedCount\">0<\/div>\r\n                        <div class=\"vi-stat-label\">Skipped<\/div>\r\n                    <\/div>\r\n                    <div class=\"vi-stat-box\">\r\n                        <div class=\"vi-stat-value\" id=\"vi-scoreValue\">0\/30<\/div>\r\n                        <div class=\"vi-stat-label\">Score<\/div>\r\n                    <\/div>\r\n                <\/div>\r\n                <div class=\"vi-email-status sending\" id=\"vi-emailStatus\">\ud83d\udce7 Sending results to director\u2026<\/div>\r\n                <p style=\"text-align:center;color:#666;font-size:0.9rem;margin-top:10px;\">\r\n                    Results sent to <strong>director@vartmaaninstitutesirsa.com<\/strong> &amp; your registered email.\r\n                <\/p>\r\n            <\/div>\r\n        <\/div>\r\n\r\n    <\/div><!-- \/vi-container -->\r\n<\/div><!-- \/vi-neet-wrap -->\r\n\r\n<script>\r\n(function() {\r\n\r\n    \/* \u2500\u2500\u2500 WEB3FORMS ACCESS KEY \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\r\n       Free service \u2014 no backend needed. Sign up at https:\/\/web3forms.com\r\n       and replace the key below with your own (the one below is a placeholder).\r\n       OR: ask your developer to paste the real key here.\r\n    \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\r\n    var WEB3FORMS_KEY = 'YOUR_WEB3FORMS_ACCESS_KEY'; \/\/ \u2190 replace this\r\n\r\n    var MCQ_DATA = [\r\n        { id:1,  question:\"Two point charges q\u2081 = 2\u03bcC and q\u2082 = -2\u03bcC are separated by 1m. The force between them is:\",           options:[\"0.036 N (attractive)\",\"0.036 N (repulsive)\",\"0.18 N (attractive)\",\"0.18 N (repulsive)\"],   correct:0 },\r\n        { id:2,  question:\"Coulomb's law is applicable for:\",                                                                     options:[\"Moving charges only\",\"Stationary charges in vacuum\/air\",\"All types of charges\",\"Magnetic forces\"],              correct:1 },\r\n        { id:3,  question:\"If distance between two charges is tripled, electrostatic force becomes:\",                             options:[\"9 times\",\"1\/9 times\",\"3 times\",\"1\/3 times\"],                                                                  correct:1 },\r\n        { id:4,  question:\"If distance between two charges is halved, the force becomes:\",                                        options:[\"F\/4\",\"4F\",\"F\/2\",\"2F\"],                                                                                         correct:1 },\r\n        { id:5,  question:\"The force between two identical charges at distance r is F. If both charges are doubled and distance halved:\", options:[\"16F\",\"8F\",\"4F\",\"F\"],                                                                                   correct:0 },\r\n        { id:6,  question:\"Electric field is defined as force per unit:\",                                                         options:[\"Unit mass\",\"Unit positive charge\",\"Unit area\",\"Unit volume\"],                                                    correct:1 },\r\n        { id:7,  question:\"Direction of electric field is:\",                                                                      options:[\"Direction of force on negative charge\",\"Direction of force on positive charge\",\"Perpendicular to force\",\"Always perpendicular to surface\"], correct:1 },\r\n        { id:8,  question:\"The SI unit of electric field is:\",                                                                    options:[\"N\/C\",\"V\/m\",\"N\/m\",\"Both A and B\"],                                                                              correct:3 },\r\n        { id:9,  question:\"Electric field is a:\",                                                                                 options:[\"Scalar quantity\",\"Vector quantity\",\"Neither scalar nor vector\",\"Sometimes scalar, sometimes vector\"],           correct:1 },\r\n        { id:10, question:\"The dimension of electric field is:\",                                                                  options:[\"[MLT\u207b\u00b3A\u207b\u00b9]\",\"[MLT\u207b\u00b2A\u207b\u00b9]\",\"[MT\u207b\u00b3A\u207b\u00b9]\",\"[LT\u207b\u00b2A\u207b\u00b9]\"],                                                          correct:0 },\r\n        { id:11, question:\"Electric field at distance r from point charge Q is:\",                                                 options:[\"kQ\/r\",\"kQ\/r\u00b2\",\"kQ\u00b2\/r\",\"k\/r\u00b2\"],                                                                                correct:1 },\r\n        { id:12, question:\"If charge Q is doubled and distance is halved, electric field becomes:\",                               options:[\"8 times\",\"4 times\",\"2 times\",\"16 times\"],                                                                      correct:0 },\r\n        { id:13, question:\"Field due to positive point charge is:\",                                                               options:[\"Towards the charge\",\"Away from charge\",\"Tangential to circle\",\"Perpendicular to radial direction\"],             correct:1 },\r\n        { id:14, question:\"Electric field lines from a positive charge:\",                                                         options:[\"Converge at charge\",\"Diverge from charge\",\"Form circles around charge\",\"Are always horizontal\"],               correct:1 },\r\n        { id:15, question:\"Two electric field lines:\",                                                                            options:[\"Can intersect\",\"Cannot intersect\",\"Must intersect at right angles\",\"Intersect at any angle\"],                  correct:1 },\r\n        { id:16, question:\"Number of field lines emanating from unit positive charge is:\",                                        options:[\"1\/\u03b5\u2080\",\"\u03b5\u2080\",\"4\u03c0\u03b5\u2080\",\"1\/(4\u03c0\u03b5\u2080)\"],                                                                               correct:0 },\r\n        { id:17, question:\"Electric field due to infinite line charge with linear density \u03bb is:\",                                 options:[\"\u03bb\/(2\u03c0\u03b5\u2080r)\",\"\u03bb\/(4\u03c0\u03b5\u2080r\u00b2)\",\"\u03bb\/\u03b5\u2080r\",\"\u03bb\/(\u03c0\u03b5\u2080r)\"],                                                                  correct:0 },\r\n        { id:18, question:\"Electric field due to infinite charged plane with surface density \u03c3 is:\",                              options:[\"\u03c3\/(2\u03b5\u2080)\",\"\u03c3\/\u03b5\u2080\",\"\u03c3\/(4\u03c0\u03b5\u2080)\",\"2\u03c3\/\u03b5\u2080\"],                                                                          correct:0 },\r\n        { id:19, question:\"Field between two parallel infinite charged planes with opposite charges:\",                            options:[\"\u03c3\/\u03b5\u2080\",\"\u03c3\/(2\u03b5\u2080)\",\"\u03c3\/(4\u03c0\u03b5\u2080)\",\"Zero\"],                                                                           correct:0 },\r\n        { id:20, question:\"Gauss law states: \u222eE\u00b7dA = Q\/\u03b5\u2080. This is valid for:\",                                                  options:[\"Point charges only\",\"Any closed surface and charge distribution\",\"Plane surfaces only\",\"Spherical surfaces only\"], correct:1 },\r\n        { id:21, question:\"Electric flux through closed surface is zero when:\",                                                   options:[\"No charge inside\",\"Equal positive and negative charges\",\"Surface is spherical\",\"Both A and B\"],                  correct:3 },\r\n        { id:22, question:\"Gauss law is a consequence of:\",                                                                       options:[\"Newton's law\",\"Coulomb's law and superposition\",\"Lorentz force\",\"Conservation of energy\"],                       correct:1 },\r\n        { id:23, question:\"Electric field at distance r from center of uniformly charged sphere (r > R):\",                        options:[\"Zero\",\"kQ\/r\u00b2\",\"kQ\/R\u00b2\",\"Depends on material\"],                                                                  correct:1 },\r\n        { id:24, question:\"Field inside a uniformly charged sphere at distance r from center (r < R):\",                           options:[\"Zero\",\"kQr\/R\u00b3\",\"kQ\/r\u00b2\",\"Constant\"],                                                                            correct:1 },\r\n        { id:25, question:\"Field at surface of uniformly charged sphere of radius R and charge Q:\",                               options:[\"kQ\/R\u00b2\",\"kQ\/R\",\"kQ\",\"Zero\"],                                                                                    correct:0 },\r\n        { id:26, question:\"Electric field inside a conductor in electrostatic equilibrium:\",                                      options:[\"Equal to external field\",\"Zero\",\"Proportional to charge\",\"Depends on shape\"],                                   correct:1 },\r\n        { id:27, question:\"In a conductor, excess charges are located:\",                                                          options:[\"Throughout the volume\",\"On the surface\",\"At the center\",\"Distributed uniformly\"],                               correct:1 },\r\n        { id:28, question:\"Electric field just outside a conductor surface is:\",                                                  options:[\"Zero\",\"Parallel to surface\",\"Perpendicular to surface\",\"At 45\u00b0 to surface\"],                                    correct:2 },\r\n        { id:29, question:\"A conductor in external electric field:\",                                                              options:[\"Develops polarization\",\"Develops induced charges\",\"Both A and B\",\"Remains unchanged\"],                          correct:2 },\r\n        { id:30, question:\"Charge density on conductor surface is highest at:\",                                                   options:[\"Flat regions\",\"Curved regions (sharper curvature)\",\"Everywhere same\",\"Depends on material\"],    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+\r\n                    '<label for=\"vi-opt-' + question.id + '-' + idx + '\">' + opt + '<\/label>' +\r\n                    '<\/div>';\r\n            }).join('');\r\n\r\n            qDiv.innerHTML =\r\n                '<div class=\"vi-question-number\">Q' + question.id + '<\/div>' +\r\n                '<div class=\"vi-question-text\">' + question.question + '<\/div>' +\r\n                '<div class=\"vi-options\">' + optHTML + '<\/div>';\r\n\r\n            var radios = qDiv.querySelectorAll('input[type=\"radio\"]');\r\n            radios.forEach(function(radio) {\r\n                radio.addEventListener('change', function() {\r\n                    if (userAnswers[question.id] !== undefined) return;\r\n\r\n                    var sel = parseInt(this.value);\r\n                    userAnswers[question.id] = sel;\r\n\r\n                    radios.forEach(function(r) { r.disabled = true; });\r\n\r\n                    var opts = qDiv.querySelectorAll('.vi-option');\r\n                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'none' : 'block';\r\n    };\r\n\r\n    window.viPreviousQuestion = function() { if (currentQuestion > 1) viShowQuestion(currentQuestion - 1); };\r\n    window.viNextQuestion     = function() { if (currentQuestion < MCQ_DATA.length) viShowQuestion(currentQuestion + 1); };\r\n\r\n    function viUpdateProgress() {\r\n        var answered = Object.keys(userAnswers).length;\r\n        document.getElementById('vi-progressFill').style.width = (answered \/ 30 * 100) + '%';\r\n        document.getElementById('vi-progressText').textContent  = answered + '\/30';\r\n    }\r\n\r\n    \/* \u2500\u2500 TIMER \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\r\n    function viStartTimer() {\r\n        timerInterval = setInterval(function() {\r\n            var elapsed   = Math.floor((Date.now() - testStartTime) \/ 1000);\r\n            var remaining = timeLimit - elapsed;\r\n\r\n            if (remaining <= 0) {\r\n                clearInterval(timerInterval);\r\n                viSubmitTest();\r\n                return;\r\n            }\r\n\r\n            var h = Math.floor(remaining \/ 3600);\r\n            var m = Math.floor((remaining % 3600) \/ 60);\r\n            var s = remaining % 60;\r\n\r\n            document.getElementById('vi-hours').textContent   = String(h).padStart(2,'0');\r\n            document.getElementById('vi-minutes').textContent = String(m).padStart(2,'0');\r\n            document.getElementById('vi-seconds').textContent = String(s).padStart(2,'0');\r\n\r\n            if (remaining <= 300) {\r\n                document.querySelector('.vi-timer-value').style.color = '#d32f2f';\r\n            }\r\n        }, 1000);\r\n    }\r\n\r\n    \/* \u2500\u2500 SUBMIT & EMAIL \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\r\n    window.viSubmitTest = function() {\r\n        clearInterval(timerInterval);\r\n\r\n        var correct = 0, incorrect = 0, skipped = 0;\r\n        MCQ_DATA.forEach(function(q) {\r\n            if (userAnswers[q.id] === undefined)      skipped++;\r\n            else if (userAnswers[q.id] === q.correct) correct++;\r\n            else                                       incorrect++;\r\n        });\r\n\r\n        var percentage = Math.round((correct \/ 30) * 100);\r\n\r\n        document.getElementById('vi-testSection').classList.add('vi-hidden');\r\n        document.getElementById('vi-resultsSection').classList.remove('vi-hidden');\r\n\r\n        document.getElementById('vi-scorePercentage').textContent = percentage;\r\n        document.getElementById('vi-correctCount').textContent    = correct;\r\n        document.getElementById('vi-incorrectCount').textContent  = incorrect;\r\n        document.getElementById('vi-skippedCount').textContent    = skipped;\r\n        document.getElementById('vi-scoreValue').textContent      = correct + '\/30';\r\n\r\n        var title = 'Test Complete!';\r\n        if      (percentage >= 80) title = 'Excellent! \ud83c\udfaf';\r\n        else if (percentage >= 65) title = 'Good Job! \ud83d\udc4d';\r\n        else if (percentage >= 50) title = 'Decent Attempt! \ud83d\udcda';\r\n        else                       title = 'Keep Practicing! \ud83d\udcaa';\r\n        document.getElementById('vi-resultTitle').textContent = title;\r\n\r\n        \/* Build a neat message body *\/\r\n        var msgBody =\r\n            '=== NEET Test Result \u2014 Vartmaan Institute Sirsa ===\\n\\n' +\r\n            'Name    : ' + studentInfo.name    + '\\n' +\r\n            'Email   : ' + studentInfo.email   + '\\n' +\r\n            'Phone   : ' + studentInfo.phone   + '\\n' +\r\n            'Class   : ' + studentInfo['class']+ '\\n' +\r\n            'Address : ' + studentInfo.address + '\\n\\n' +\r\n            'Score   : ' + correct + '\/30  (' + percentage + '%)\\n' +\r\n            'Correct : ' + correct   + '\\n' +\r\n            'Wrong   : ' + incorrect + '\\n' +\r\n            'Skipped : ' + skipped   + '\\n\\n' +\r\n            'Test    : NEET Physics \u2014 Electric Force & Field (Ch.1)\\n' +\r\n            'Date    : ' + new Date().toLocaleString() + '\\n' +\r\n            'Website : vartmaaninstitutesirsa.com';\r\n\r\n        \/* \u2500\u2500 Send via Web3Forms (free, no backend) \u2500\u2500\r\n           Sign up at https:\/\/web3forms.com to get your free access key.\r\n           Replace WEB3FORMS_KEY at the top of this script. \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 *\/\r\n        var statusEl = document.getElementById('vi-emailStatus');\r\n\r\n        var payload = {\r\n            access_key : WEB3FORMS_KEY,\r\n            subject    : 'NEET Test Result \u2014 ' + studentInfo.name + ' (' + percentage + '%)',\r\n            from_name  : 'Vartmaan Institute Sirsa',\r\n            to         : 'director@vartmaaninstitutesirsa.com',\r\n            replyto    : studentInfo.email,\r\n            message    : msgBody\r\n        };\r\n\r\n        fetch('https:\/\/api.web3forms.com\/submit', {\r\n            method  : 'POST',\r\n            headers : { 'Content-Type': 'application\/json', 'Accept': 'application\/json' },\r\n            body    : JSON.stringify(payload)\r\n        })\r\n        .then(function(res) { return res.json(); })\r\n        .then(function(data) {\r\n            if (data.success) {\r\n                statusEl.className   = 'vi-email-status sent';\r\n                statusEl.textContent = '\u2705 Result emailed successfully to director & student.';\r\n            } else {\r\n                throw new Error(data.message || 'Unknown error');\r\n            }\r\n        })\r\n        .catch(function(err) {\r\n            statusEl.className   = 'vi-email-status failed';\r\n            statusEl.textContent = '\u26a0\ufe0f Email could not be sent automatically. 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