Magnetism and Matter NCERT Solutions: Chapter 5 Guide, CBSE Marking Scheme, Key Formulas, Diagrams (Updated Apr 23, 2026)

Updated on Apr 23, 2026: Magnetism and Matter NCERT Solutions curated by subject experts and aligned to the CBSE marking scheme. Includes diagrams, key formulas, repeated board questions (2010–2024) and exam weightage.

Edited by Arjun Nair

Updated April 25, 2026 12:00 AM

    NCERT Class 12 Physics Chapter 5 Magnetism and Matter NCERT Solutions were updated on Apr 23, 2026 . The solutions are curated by subject experts and cross-verified to match the CBSE marking scheme .

    The chapter is largely theoretical and is considered high-scoring. Diagrams and key formulas are highlighted for quick revision. The file lists most repeated board questions from 2010–2024 to help focused practice.

    Magnetism and Matter NCERT Solutions — What’s included

    Solutions cover all NCERT exercises with stepwise answers mapped to likely marks. Diagrams for the hysteresis loop, bar magnet field (axial and equatorial), and magnetisation curves are emphasised. Key formulas like B = μ0(H + M), μr = 1 + χ and expressions for bar magnet fields are highlighted for quick recall.

    What the pack is aimed at: CBSE Class 12 students preparing for Board exams and aspirants of JEE, NEET and CUET who need theory and application practice.

    Magnetism and Matter NCERT Solutions — Exam weightage and repeated questions

    The solutions note typical marks and frequency based on recent papers. Use this table to plan revision and attempt practice questions in order of priority.

    Exam / Paper Typical marks from chapter Typical questions per paper
    CBSE Board 4–6 marks 4–5 questions (total 7–9 marks)
    JEE / NEET 2–4% weightage 1–2 conceptual MCQs
    CUET 10–12% weightage 1–2 theory/application items

    Past-year question focus (2010–2024) includes: Gauss’s law for magnetism, axial/equatorial field of a bar magnet, hysteresis loop terms (retentivity, coercivity), Curie temperature, and angle of dip questions.

    Key facts at a glance

    Fact Detail
    Updated on Apr 23, 2026
    Repeated years listed 2010–2024
    Chapter marks in Board 4–6 marks
    Total chapter marks per paper 7–9 marks

    What’s missing from this resource

    The solutions are thorough but do not include a downloadable full NCERT solutions PDF, video lectures, timed practice tests, or a bundled past-year solved papers collection. Detailed mark-wise mapping for every answer and a doubt-resolution forum are also not provided.

    How to use these solutions for quick revision

    Prioritise diagrams and formula sheets first. Solve repeated board questions from 2010–2024 and practise the provided short and long answers under timed conditions. For competitive exams, focus on application-based MCQs and conceptual clarity.

    FAQs

    Why is soft iron preferred for electromagnets and transformers? A. Soft iron has low retentivity and low coercivity so it magnetises and demagnetises easily.
    What is hysteresis? What are retentivity and coercivity? A. Hysteresis is the lag of magnetisation behind the magnetising field. Retentivity is B at H = 0; coercivity is the reverse H needed to make B = 0.
    What is the Curie temperature? A. The Curie temperature is the temperature above which ferromagnetic materials become paramagnetic. For iron it is 1043 K .
    Differentiate diamagnetic, paramagnetic and ferromagnetic materials. A. Diamagnetic: small negative χ. Paramagnetic: small positive χ. Ferromagnetic: large positive χ.
    How many MCQs come from this chapter in Board/CUET papers? A. Typically 1–2 MCQs per year; total chapter questions around 4–5 with 7–9 marks per paper.

    This post is for subscribers on the Free, Bronze and Gold tiers

    Already have an account? Log in