{"id":3983,"date":"2026-03-28T12:33:15","date_gmt":"2026-03-28T12:33:15","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=3983"},"modified":"2026-04-03T12:24:47","modified_gmt":"2026-04-03T12:24:47","slug":"magnetism-and-matter-class-12-notes","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/magnetism-and-matter-class-12-notes\/","title":{"rendered":"Magnetism and Matter Class 12 Notes PDF: Comprehensive Guide for NEET"},"content":{"rendered":"\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&family=JetBrains+Mono:wght@400;500;700&family=Plus+Jakarta+Sans:wght@400;600;700;800&display=swap');\n\n:root {\n--accent: #e8600a;\n--accent-light: #fff3ec;\n--accent-mid: #fde3cc;\n--dark: #111827;\n--text: #1a1a1a;\n--text-muted: #4b5563;\n--border: #e5e7eb;\n--green-bg: #f0fdf4;\n--green-border: #16a34a;\n--blue-bg: #eff6ff;\n--blue-border: #3b82f6;\n}\n\nbody {\nfont-family: 'DM Sans', sans-serif;\ncolor: var(--text);\nline-height: 1.6;\nmargin: 0;\npadding: 0;\n}\n\n.content-wrapper {\npadding: 0 0px;\n}\n\n@media (max-width: 640px) {\n.content-wrapper {\npadding: 0 10px;\n}\n}\n\nh1, h2, h3 {\nfont-family: 'Plus Jakarta Sans', sans-serif;\ncolor: var(--dark);\n}\n\nh1 { font-size: 2.5rem; 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font-size: 0.95rem; }\n\ndetails {\nborder-bottom: 1px solid var(--border);\n}\nsummary {\nlist-style: none;\npadding: 18px 20px;\nbackground: #fafafa;\nfont-family: 'Plus Jakarta Sans', sans-serif;\nfont-weight: 700;\ncursor: pointer;\ndisplay: flex;\njustify-content: space-between;\nalign-items: center;\n}\nsummary::-webkit-details-marker { display: none; }\nsummary::after {\ncontent: '+';\nwidth: 24px;\nheight: 24px;\nbackground: white;\nborder: 1px solid var(--accent);\ncolor: var(--accent);\nborder-radius: 50%;\ndisplay: flex;\nalign-items: center;\njustify-content: center;\n}\ndetails[open] summary { background: #fff3ec; color: var(--accent); }\ndetails[open] summary::after { content: '\u2212'; }\n.faq-content { padding: 16px 20px; background: white; color: var(--text-muted); }\n\n.revision-box {\nbackground: var(--green-bg);\nborder: 2px solid var(--green-border);\nborder-radius: 12px;\npadding: 25px;\nmargin: 30px 0;\n}\n.revision-box h3 { color: var(--green-border); margin-top: 0; }\n.revision-box ul { color: #166534; padding-left: 20px; }\n\n.cta-section {\nbackground: linear-gradient(135deg, #e8600a, #c2410c, #9a3412);\npadding: 60px 20px;\ntext-align: center;\ncolor: white;\n}\n.cta-section h2 { color: white; margin-bottom: 15px; justify-content: center; }\n.cta-section p { color: rgba(255,255,255,0.85); font-size: 1.1rem; margin-bottom: 30px; }\n.btn-group { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }\n.btn {\npadding: 12px 28px;\nborder-radius: 6px;\nfont-weight: 600;\ntext-decoration: none;\ntransition: 0.3s;\n}\n.btn-solid { background: white; color: var(--accent); }\n.btn-outline { border: 2px solid white; color: white; }\n\n.internal-links {\nbackground: #f9fafb;\nborder: 1px solid var(--border);\nborder-radius: 10px;\npadding: 20px;\nmargin: 20px 0;\n}\n.internal-links span { display: block; font-weight: 700; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 10px; }\n.internal-links a { color: var(--accent); font-weight: 600; text-decoration: none; margin-right: 15px; font-size: 0.95rem; }\n\n.download-btn {\nbackground: var(--dark);\ncolor: white;\ndisplay: inline-flex;\nalign-items: center;\ngap: 10px;\npadding: 12px 24px;\nborder-radius: 8px;\ntext-decoration: none;\nfont-weight: 600;\nmargin: 20px 0;\n}\n<\/style>\n\n<div class=\"content-wrapper\">\n\n<p>Mastering the chapter on <strong>Magnetism and Matter<\/strong> is crucial for any NEET aspirant. This chapter bridges the gap between basic moving charges and the complex magnetic behavior of materials. Whether you are looking for <strong>magnetism and matter class 12 notes pdf<\/strong> or a deep dive into Earth&#8217;s magnetic elements, this guide covers every NCERT concept with a focus on competitive exam patterns.<\/p>\n\n\n<h2><div class=\"badge\">01<\/div>Introduction to Magnetism and Matter<\/h2>\n<p>Magnetism is a fascinating phenomenon that arises from two primary sources: the motion of electric charges (currents) and the intrinsic magnetic moments of elementary particles. While we often study magnetism in terms of wires and loops, &#8220;Magnetism and Matter&#8221; explores how bulk materials like iron, copper, and bismuth react to magnetic fields.<\/p>\n\n<div class=\"grid-cards\">\n<div class=\"card\">\n<div class=\"card-title\">Macroscopic Level<\/div>\n<div class=\"card-body\">Observed through permanent magnets, bar magnets, and the Earth&#8217;s magnetic field affecting compass needles.<\/div>\n<\/div>\n<div class=\"card\">\n<div class=\"card-title\">Microscopic Level<\/div>\n<div class=\"card-body\">Originates from electron spin and orbital motion within atoms, creating atomic dipoles.<\/div>\n<\/div>\n<\/div>\n\n<h2><div class=\"badge\">02<\/div>Bar Magnet as an Equivalent Solenoid<\/h2>\n<p>A bar magnet behaves very similarly to a closely wound solenoid carrying current. Both produce similar magnetic field patterns. A bar magnet is essentially a magnetic dipole consisting of two poles: North and South, separated by a small distance.<\/p>\n\n<div class=\"formula-dark\">\n<span class=\"label\">Magnetic Dipole Moment<\/span>\n<div class=\"math\">M = m \u00d7 2l<\/div>\n<\/div>\n\n<p>Where <i>m<\/i> is the pole strength and <i>2l<\/i> is the magnetic length. The direction of <strong>M<\/strong> is always from the South pole to the North pole. In the context of <strong>magnetism and matter class 12 notes pdf<\/strong>, remember that the field at a large distance <i>r<\/i> on the axial line of a bar magnet is given by:<\/p>\n\n<div class=\"formula-orange\">\n<div class=\"math\">B = (\u03bc<sub>0<\/sub> \/ 4\u03c0) \u00d7 (2M \/ r<sup>3<\/sup>)<\/div>\n<\/div>\n\n<a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:20px;\">\n<img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/Course-Poromo-Banner-scaled.png\" alt=\"Mission 180 NEET Physics Rankers Batch - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n<\/a>\n\n<h2><div class=\"badge\">03<\/div>Magnetic Field Lines and Properties<\/h2>\n<p>Magnetic field lines are imaginary curves used to represent magnetic fields. Unlike electric field lines, which start at positive charges and end at negative charges, magnetic field lines form <strong>continuous closed loops<\/strong>.<\/p>\n<ul>\n<li><strong>Outside the magnet:<\/strong> Lines travel from North to South.<\/li>\n<li><strong>Inside the magnet:<\/strong> Lines travel from South to North.<\/li>\n<li>The tangent at any point gives the direction of the magnetic field <i>B<\/i>.<\/li>\n<li>The density of lines indicates the strength of the field.<\/li>\n<\/ul>\n\n<div class=\"callout tip\">\n<span class=\"pill blue\">TIP<\/span>\n<p>Two magnetic field lines never intersect. If they did, it would mean the magnetic field has two different directions at the point of intersection, which is physically impossible.<\/p>\n<\/div>\n\n<h2><div class=\"badge\">04<\/div>Torque and Potential Energy of a Dipole<\/h2>\n<p>When a magnetic dipole (like a bar magnet or a compass needle) is placed in a uniform magnetic field <i>B<\/i>, it experiences a torque that tries to align it with the field.<\/p>\n\n<div class=\"formula-dark\">\n<span class=\"label\">Torque on Dipole<\/span>\n<div class=\"math\">\u03c4 = M \u00d7 B = MB sin \u03b8<\/div>\n<\/div>\n\n<p>The work done in rotating the dipole is stored as potential energy <i>U<\/i>:<\/p>\n\n<div class=\"formula-orange\">\n<div class=\"math\">U = \u2212M \u00b7 B = \u2212MB cos \u03b8<\/div>\n<\/div>\n\n<table>\n<thead>\n<tr>\n<th>Angle (\u03b8)<\/th>\n<th>Potential Energy (U)<\/th>\n<th>Equilibrium State<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0\u00b0<\/td>\n<td>\u2212MB (Minimum)<\/td>\n<td>Stable Equilibrium<\/td>\n<\/tr>\n<tr>\n<td>90\u00b0<\/td>\n<td>0<\/td>\n<td>Neutral<\/td>\n<\/tr>\n<tr>\n<td>180\u00b0<\/td>\n<td>+MB (Maximum)<\/td>\n<td>Unstable Equilibrium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<h2><div class=\"badge\">05<\/div>Earth&#8217;s Magnetism<\/h2>\n<p>Earth acts as a giant magnetic dipole. The theoretical &#8220;bar magnet&#8221; inside Earth is tilted at roughly 11.3\u00b0 to the geographic axis. To define the magnetic field at any point on Earth, we use three <strong>magnetic elements<\/strong>:<\/p>\n\n<ol>\n<li><strong>Magnetic Declination (\u03b1):<\/strong> Angle between the geographic meridian and the magnetic meridian.<\/li>\n<li><strong>Magnetic Inclination or Dip (\u03b8):<\/strong> Angle that the total magnetic field of Earth makes with the horizontal surface.<\/li>\n<li><strong>Horizontal Component (B<sub>H<\/sub>):<\/strong> The part of Earth&#8217;s field along the horizontal direction.<\/li>\n<\/ol>\n\n<div class=\"formula-dark\">\n<span class=\"label\">Earth Field Relations<\/span>\n<div class=\"math\">B<sub>H<\/sub> = B cos \u03b8<\/div>\n<div class=\"math\">B<sub>V<\/sub> = B sin \u03b8<\/div>\n<div class=\"math\">tan \u03b8 = B<sub>V<\/sub> \/ B<sub>H<\/sub><\/div>\n<\/div>\n\n<div class=\"callout warning\">\n<span class=\"pill orange\">WARN<\/span>\n<p>At the magnetic poles, the angle of dip is 90\u00b0, meaning the horizontal component B<sub>H<\/sub> is zero. At the magnetic equator, the angle of dip is 0\u00b0.<\/p>\n<\/div>\n\n<h2><div class=\"badge\">06<\/div>Classification of Magnetic Materials<\/h2>\n<p>Materials are classified based on their response to an external magnetic field. This is a high-priority topic for those downloading the <strong>magnetism and matter class 12 notes pdf<\/strong>.<\/p>\n\n<div class=\"grid-cards\">\n<div class=\"card\">\n<div class=\"card-title\">Diamagnetic<\/div>\n<div class=\"card-body\">Weakly repelled by magnets. Susceptibility (\u03c7) is small and negative. Examples: Copper, Water, Bismuth.<\/div>\n<\/div>\n<div class=\"card\">\n<div class=\"card-title\">Paramagnetic<\/div>\n<div class=\"card-body\">Weakly attracted by magnets. Susceptibility (\u03c7) is small and positive. Examples: Aluminum, Oxygen, Sodium.<\/div>\n<\/div>\n<\/div>\n\n<h3>Ferromagnetic Materials<\/h3>\n<p>These materials show strong attraction and can be permanently magnetized. This occurs due to &#8220;domains&#8221;\u2014regions where all atomic dipoles are aligned in the same direction. When an external field is applied, these domains align or grow, creating a massive net magnetic moment.<\/p>\n\n<a href=\"https:\/\/ksquareinstitute.in\/neet-2026-rank-predictor\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:20px;\">\n<img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/neet-2026-college-and-rank-predictor-scaled.png\" alt=\"NEET 2026 Rank Predictor - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n<\/a>\n\n<h2><div class=\"badge\">07<\/div>Magnetization and Magnetic Intensity<\/h2>\n<p>To quantify the magnetic state of matter, we define several parameters:<\/p>\n<ul>\n<li><strong>Magnetic Intensity (H):<\/strong> The external field applied to magnetize a material.<\/li>\n<li><strong>Magnetization (M):<\/strong> Net magnetic moment per unit volume. <i>M = \u03c7H<\/i>.<\/li>\n<li><strong>Magnetic Susceptibility (\u03c7):<\/strong> Measure of how easily a substance is magnetized.<\/li>\n<\/ul>\n\n<div class=\"formula-orange\">\n<div class=\"math\">B = \u03bc<sub>0<\/sub>(H + M) = \u03bc<sub>0<\/sub>H(1 + \u03c7)<\/div>\n<div class=\"math\">\u03bc = \u03bc<sub>0<\/sub>(1 + \u03c7)<\/div>\n<\/div>\n\n<h2><div class=\"badge\">08<\/div>Hysteresis Loop<\/h2>\n<p>For ferromagnetic materials, the relationship between <i>B<\/i> and <i>H<\/i> is not linear and depends on the history of the sample. This is known as <strong>hysteresis<\/strong>.<\/p>\n<ul>\n<li><strong>Retentivity:<\/strong> The value of <i>B<\/i> when <i>H<\/i> is reduced to zero.<\/li>\n<li><strong>Coercivity:<\/strong> The reverse magnetic intensity <i>H<\/i> required to make <i>B<\/i> zero.<\/li>\n<li><strong>Area of the loop:<\/strong> Represents the energy dissipated per unit volume per cycle as heat.<\/li>\n<\/ul>\n\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Soft Iron (Electromagnets)<\/th>\n<th>Steel (Permanent Magnets)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Retentivity<\/td>\n<td>High<\/td>\n<td>Low (relatively)<\/td>\n<\/tr>\n<tr>\n<td>Coercivity<\/td>\n<td>Low<\/td>\n<td>High<\/td>\n<\/tr>\n<tr>\n<td>Hysteresis Loss<\/td>\n<td>Low (Narrow loop)<\/td>\n<td>High (Broad loop)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<h2><div class=\"badge\">09<\/div>Numerical Problem-Solving Strategy<\/h2>\n<p>To score high in NEET Physics, follow these steps for magnetism problems:<\/p>\n<ul>\n<li><strong>Identify the system:<\/strong> Is it a bar magnet, a solenoid, or a material in a field?<\/li>\n<li><strong>Check Units:<\/strong> Ensure <i>M<\/i> is in A m<sup>2<\/sup> and <i>B<\/i> is in Tesla (T).<\/li>\n<li><strong>Angle Conversion:<\/strong> For torque and energy, ensure \u03b8 is the angle between <strong>M<\/strong> and <strong>B<\/strong>.<\/li>\n<li><strong>Susceptibility:<\/strong> Remember that for diamagnets, 1 + \u03c7 < 1, and for paramagnets, 1 + \u03c7 > 1.<\/li>\n<\/ul>\n\n<h2><div class=\"badge\">10<\/div>PYQ Trends Table<\/h2>\n<p>Based on the last 10 years of NEET papers, here is how the chapter <strong>Magnetism and Matter<\/strong> is weighted:<\/p>\n\n<table>\n<thead>\n<tr>\n<th>Topic Name<\/th>\n<th>Frequency<\/th>\n<th>Question Type<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Properties of Materials<\/td>\n<td>Very High<\/td>\n<td>Theoretical \/ Identification<\/td>\n<\/tr>\n<tr>\n<td>Earth&#8217;s Magnetic Elements<\/td>\n<td>High<\/td>\n<td>Formula-based Numerical<\/td>\n<\/tr>\n<tr>\n<td>Torque &#038; Potential Energy<\/td>\n<td>Medium<\/td>\n<td>Ratio-based problems<\/td>\n<\/tr>\n<tr>\n<td>Hysteresis Loop<\/td>\n<td>Medium<\/td>\n<td>Graph interpretation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<div class=\"revision-box\">\n<h3>Quick Revision Checklist<\/h3>\n<ul>\n<li>Magnetic Dipole Moment: M = m \u00d7 2l<\/li>\n<li>Torque \u03c4 = MB sin \u03b8 and Energy U = \u2212MB cos \u03b8<\/li>\n<li>Gauss&#8217;s Law for Magnetism: Total flux through any closed surface is zero.<\/li>\n<li>Tangent Law: B = B<sub>H<\/sub> tan \u03b8<\/li>\n<li>Curie&#8217;s Law: \u03c7 is inversely proportional to Temperature (T).<\/li>\n<li>Diamagnetic: \u03c7 is negative and temperature independent.<\/li>\n<li>Angle of Dip at poles = 90\u00b0; at equator = 0\u00b0.<\/li>\n<li>Relative permeability \u03bc<sub>r<\/sub> = 1 + \u03c7.<\/li>\n<li>Soft iron is used for transformer cores due to low hysteresis loss.<\/li>\n<li>Steel is used for permanent magnets due to high coercivity.<\/li>\n<\/ul>\n<a href=\"#\" class=\"download-btn\" rel=\"nofollow noopener noreferrer\">\nDownload Formula Sheet PDF\n<\/a>\n<\/div>\n\n<div class=\"internal-links\">\n<span>QUICK NAVIGATION<\/span>\n<a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-physics-survival-kit-2026\/\">Physics Survival Kit<\/a>\n<a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-biology-tricks-for-exams\/\">Biology Tricks<\/a>\n<a href=\"https:\/\/ksquareinstitute.in\/blog\/score-340-in-neet-biology\/\">Score 340+ Biology<\/a>\n<\/div>\n\n<h2><div class=\"badge\">11<\/div>Frequently Asked Questions (FAQs)<\/h2>\n\n<details>\n<summary>What is the focus of magnetism and matter class 12 notes pdf?<\/summary>\n<div class=\"faq-content\">\nThe notes focus on the magnetic properties of materials (dia, para, ferro), Earth&#8217;s magnetism elements, and the behavior of magnetic dipoles in uniform fields. These are high-yield topics for NEET.\n<\/div>\n<\/details>\n\n<details>\n<summary>Why is the magnetic flux through a closed surface zero?<\/summary>\n<div class=\"faq-content\">\nBecause magnetic monopoles do not exist. Every magnetic field line that enters a closed surface must also leave it, forming continuous loops.\n<\/div>\n<\/details>\n\n<details>\n<summary>What is the difference between Retentivity and Coercivity?<\/summary>\n<div class=\"faq-content\">\nRetentivity is the magnetism left in a material when the external field is removed. Coercivity is the amount of reverse field needed to completely demagnetize the material.\n<\/div>\n<\/details>\n\n<details>\n<summary>Does temperature affect diamagnetic materials?<\/summary>\n<div class=\"faq-content\">\nNo, diamagnetism is generally temperature-independent, unlike paramagnetism which follows Curie&#8217;s Law.\n<\/div>\n<\/details>\n\n<details>\n<summary>What is the SI unit of Magnetic Susceptibility?<\/summary>\n<div class=\"faq-content\">\nMagnetic susceptibility (\u03c7) is a dimensionless quantity as it is the ratio of Magnetization (M) to Magnetic Intensity (H), both of which have the unit A\/m.\n<\/div>\n<\/details>\n\n<h2><div class=\"badge\">12<\/div>Common Mistakes to Avoid<\/h2>\n<ul>\n<li><strong>H vs B:<\/strong> Don&#8217;t confuse Magnetic Intensity (H) with Magnetic Induction (B). Remember B = \u03bcH.<\/li>\n<li><strong>Dip Angle:<\/strong> Many students swap B<sub>H<\/sub> and B<sub>V<\/sub>. Always remember B<sub>H<\/sub> uses cos \u03b8.<\/li>\n<li><strong>Magnetic Moment Direction:<\/strong> It is South to North, which is the opposite of the electric dipole convention.<\/li>\n<\/ul>\n\n<div class=\"cta-section\">\n<h2>Ready to Ace NEET Physics?<\/h2>\n<p>Join thousands of students who have mastered Magnetism and Matter with our specialized Rankers Batch. Get access to detailed video lectures and 1000+ practice questions.<\/p>\n<div class=\"btn-group\">\n<a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" class=\"btn btn-solid\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Join Mission 180 Batch<\/a>\n<a href=\"https:\/\/ksquareinstitute.in\/free-study-material\/\" class=\"btn btn-outline\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Free Study Material<\/a>\n<\/div>\n<\/div>\n\n<\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>Table of Contents \u2014 Physics Class 12<\/title>\n  \n  <!-- Google Fonts Import -->\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n  <link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&#038;family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&#038;display=swap\" rel=\"stylesheet\">\n  \n  <style>\n    \/* Scoped wrapper using a unique ID to prevent CSS conflicts. *\/\n    #physics-toc-wrapper {\n      font-family: 'DM Sans', sans-serif;\n      width: 100%;\n      margin: 0;\n      padding: 60px 0;\n      color: #111;\n      background: #fff;\n      -webkit-font-smoothing: antialiased;\n    }\n\n    #physics-toc-wrapper .container-inner {\n      width: 100%;\n      margin: 0 auto;\n      padding: 0; \/* No left\/right padding for edge-to-edge look *\/\n    }\n\n    #physics-toc-wrapper h1 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.85rem;\n      font-weight: 700;\n      color: #71717a;\n      margin: 0 0 8px;\n      letter-spacing: 0.1em;\n      text-transform: uppercase;\n      padding-left: 16px; \n    }\n\n    #physics-toc-wrapper h2 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 2.25rem;\n      font-weight: 800;\n      margin: 0 0 48px;\n      letter-spacing: -0.02em;\n      color: #09090b;\n      padding-left: 16px;\n    }\n\n    #physics-toc-wrapper table {\n      width: 100%;\n      border-collapse: collapse;\n      border-spacing: 0;\n      border-top: 1px solid #e4e4e7;\n      border-bottom: 1px solid #e4e4e7;\n    }\n\n    #physics-toc-wrapper tr {\n      border-bottom: 1px solid #e4e4e7;\n      transition: all 0.2s ease;\n    }\n\n    #physics-toc-wrapper tr:hover {\n      background-color: #f8fafc;\n    }\n\n    #physics-toc-wrapper tr:last-child {\n      border-bottom: none;\n    }\n\n    #physics-toc-wrapper td {\n      padding: 24px 16px;\n      vertical-align: middle;\n      font-size: 1.05rem;\n      font-weight: 500;\n      border-right: 1px solid #e4e4e7;\n    }\n\n    #physics-toc-wrapper td:last-child {\n      border-right: none;\n    }\n\n    \/* First column (Numbers) alignment and padding *\/\n    #physics-toc-wrapper td:first-child {\n      color: #a1a1aa;\n      font-size: 0.9rem;\n      width: 70px;\n      font-weight: 400;\n      font-variant-numeric: tabular-nums;\n      text-align: center;\n      padding-left: 10px;\n    }\n\n    \/* Middle column (Chapter Name) alignment and padding *\/\n    #physics-toc-wrapper td:nth-child(2) {\n      padding-left: 24px;\n      color: #18181b;\n    }\n\n    \/* Last column (Button) alignment and padding *\/\n    #physics-toc-wrapper td:last-child {\n      text-align: right;\n      width: 180px;\n      padding-right: 16px;\n    }\n\n    \/* Button Styling *\/\n    #physics-toc-wrapper a.go {\n      display: inline-block;\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.75rem;\n      font-weight: 800;\n      padding: 12px 24px;\n      border: 1.5px solid #18181b;\n      border-radius: 8px;\n      color: #18181b;\n      text-decoration: none;\n      letter-spacing: 0.05em;\n      text-transform: uppercase;\n      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);\n      white-space: nowrap;\n    }\n\n    #physics-toc-wrapper a.go:hover {\n      background: #18181b;\n      color: #ffffff;\n      transform: translateY(-2px);\n      box-shadow: 0 4px 12px rgba(24, 24, 27, 0.15);\n    }\n\n    \/* Responsive adjustments *\/\n    @media (max-width: 768px) {\n      #physics-toc-wrapper h2 {\n        font-size: 1.75rem;\n        margin-bottom: 32px;\n      }\n      #physics-toc-wrapper td {\n        padding: 18px 12px;\n        font-size: 0.95rem;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<div id=\"physics-toc-wrapper\">\n  <div class=\"container-inner\">\n    <h1>Table of Contents<\/h1>\n    <h2>Physics &mdash; Class 12<\/h2>\n    \n    <table>\n      <tr><td>01<\/td><td>Electric Charges and Fields<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/electric-charges-and-fields-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>02<\/td><td>Electrostatic Potential and Capacitance<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/electrostatic-potential-and-capacitance-notes-class-12\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>03<\/td><td>Current Electricity<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/current-electricity-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>04<\/td><td>Moving Charges and Magnetism<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/moving-charges-and-magnetism-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>05<\/td><td>Magnetism and Matter<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/magnetism-and-matter-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>06<\/td><td>Electromagnetic Induction<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/electromagnetic-induction-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>07<\/td><td>Alternating Current<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/alternating-current-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>08<\/td><td>Electromagnetic Waves<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/electromagnetic-waves-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>09<\/td><td>Ray Optics and Optical Instruments<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/ray-optics-and-optical-instruments-class-12\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>10<\/td><td>Wave Optics<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/wave-optics-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>11<\/td><td>Dual Nature of Radiation and Matter<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/dual-nature-of-radiation-and-matter-class-12\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>12<\/td><td>Atoms<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/atoms-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>13<\/td><td>Nuclei<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/nuclei-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>14<\/td><td>Semiconductor Electronics<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/semiconductor-electronics-class-12-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n    <\/table>\n  <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>Mastering the chapter on Magnetism and Matter is crucial for any NEET aspirant. This chapter bridges the gap between basic moving charges and the complex magnetic behavior of materials. Whether you are looking for magnetism and matter class 12 notes pdf or a deep dive into Earth&#8217;s magnetic elements, this guide covers every NCERT concept [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127],"tags":[208,205,207,204,202,210,203,206,209,211],"class_list":["post-3983","post","type-post","status-publish","format-standard","hentry","category-free-study-material","tag-class-12-physics-notes-magnetism","tag-earth-magnetism-class-12","tag-hysteresis-curve-explanation","tag-magnetic-dipole-class-12","tag-magnetic-properties-of-materials","tag-magnetic-susceptibility-permeability","tag-magnetism-and-matter-class-12-notes","tag-neet-physics-magnetism","tag-paramagnetic-diamagnetic-ferromagnetic","tag-physics-chapter-magnetism-and-matter"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/3983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=3983"}],"version-history":[{"count":2,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/3983\/revisions"}],"predecessor-version":[{"id":4222,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/3983\/revisions\/4222"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=3983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=3983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=3983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}