Chapter 11 of 16
Syllabus
Magnetic Materials — Syllabus
Maharashtra Board · Class 12 · Physics
What Magnetic Materials covers in Maharashtra Board Class 12 Physics: 4 topics, for the 2026-27 session. Topics include Magnetic Dipole in Uniform.
44 questions22 flashcards7 formulas & key relations5 concepts
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4 Topics · Maharashtra Board Class 12 Physics · 2026-27
Topics in Magnetic Materials
1
Magnetic Dipole in Uniform Magnetic Field
- When a magnetic dipole is placed in uniform magnetic field, it experiences a torque τ = m⃗ × B⃗
- Torque magnitude: τ = mB sin θ, where θ is angle between dipole moment and field
- Magnetic potential energy: U = -mB cos θ
2
Origin of Magnetism in Atoms
- Magnetism originates from moving electrons in atoms
- Orbital motion of electrons creates orbital magnetic moment: m_orb = (e/2m_e)L
- Electron spin contributes spin magnetic moment
3
Magnetization and Magnetic Intensity
- Magnetization M = net magnetic moment per unit volume
- Magnetic intensity H = magnetic field independent of material properties
- Relationship: B = μ₀(H + M)
4
Classification of Magnetic Materials
- DIAMAGNETIC: χ < 0, repelled by magnets, all electrons paired
- Examples: Cu, Au, Bi, Pb, water, most organic compounds
- Move from strong to weak field regions
Key Concepts
A magnetic dipole experiences torque τElectrons contribute to atomic magnetic momentMagnetization M = m_net/volume represents magneticDiamagnetic (χ < 0Ferromagnetic materials contain domains (10⁶
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What are the important topics in Magnetic Materials for Maharashtra Board Class 12 Physics?
Key topics in Magnetic Materials include Magnetic Dipole in Uniform Magnetic Field, Origin of Magnetism in Atoms, Magnetization and Magnetic Intensity, Classification of Magnetic Materials. Study these first, then practise questions on each for the Maharashtra Board Class 12 board exam.
How should I revise Magnetic Materials for the Maharashtra Board Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Magnetic Materials. Revise definitions regularly and use flashcards for quick recall before the exam.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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