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Syllabus

Moving Charges and Magnetism — Syllabus

Madhya Pradesh Board · Class 12 · Physics

What Moving Charges and Magnetism covers in Madhya Pradesh Board Class 12 Physics: 4 topics, for the 2026-27 session.

118 questions70 flashcards15 formulas & key relations5 concepts

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Illustrates the magnetic field produced by a circular current loop at a point on its axis, showing how perpendicular components of `dB` cancel and axial components add up.
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4 Topics · Madhya Pradesh Board Class 12 Physics · 2026-27

Topics in Moving Charges and Magnetism

1

1. Historical idea and basic magnetic field concepts

  • Oersted discovered the connection between electricity and magnetism during a lecture demonstration in summer 1820.
  • A current in a straight wire causes a compass needle near it to deflect.
  • The alignment of the compass needle is tangential to an imaginary circle around the wire.
2

2. Lorentz force and force on a current-carrying conductor

  • The force on a charge moving in electric and magnetic fields is called the Lorentz force.
  • The magnetic force acts perpendicular to both velocity and magnetic field.
  • Force on a negative charge is opposite to that on a positive charge.
3

3. Motion of a charged particle in a uniform magnetic field

  • If velocity is perpendicular to magnetic field, the particle describes a circle.
  • If velocity has a component parallel to the field, that component is unchanged and the path becomes helical.
  • Magnetic force does no work, so speed remains constant in a pure magnetic field.
4

4. Biot-Savart law and field of a circular loop

  • Biot-Savart law gives the magnetic field due to a current element.
  • dB is proportional to current, element length, and inversely proportional to r squared.
  • The direction of dB is perpendicular to the plane containing dl and r.

Key Concepts

Central concept: Moving Charges and Magnetism

Electricity and Magnetism LinkMagnetic Field and Lorentz ForceForce on Current-Carrying ConductorMotion of Charged ParticlesBiot-Savart LawMagnetic Field of Circular LoopAmpere's Circuital LawMagnetic Field of Long Straight Wire

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Frequently Asked Questions

What are the important topics in Moving Charges and Magnetism for Madhya Pradesh Board Class 12 Physics?
Key topics in Moving Charges and Magnetism include Historical idea and basic magnetic field concepts, Lorentz force and force on a current-carrying conductor, Motion of a charged particle in a uniform magnetic field, Biot-Savart law and field of a circular loop. Study these first, then practise questions on each for the Madhya Pradesh Board Class 12 board exam.
How should I revise Moving Charges and Magnetism for the Madhya Pradesh Board Class 12 board exam?
Learn the core ideas first, then work through the 118 practice questions on Moving Charges and Magnetism. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Madhya Pradesh Board Class 12 Physics Syllabus

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