NCERT Solutions for Class 12 Physics Chapter 4 Moving Charges and Magnetism

NCERT Solutions for Class 12 Physics Chapter 4 Moving Charges and Magnetism

NCERT Class 12 physics solutions for chapter 4 moving charges and magnetism given here can help the students to clear all their doubts in an instant. This chapter comprises of diagrams, graphs, illustrations and day to day examples that make your study interesting and helps to remember the concepts for a longer period.

The direct derivations of topics like forces between two current-carrying wires, ampere circuital law are frequently asked in exams. Numerical problems are asked from this chapter. The working and figure of cyclotron should be studied intensively.

Subtopics of Chapter 4 Moving Charges and Magnetism


  • 4.1 Introduction
  • 4.2 Magnetic Force
  • 4.2.1 Sources And Fields
  • 4.2.2 Magnetic Field, Lorentz Force
  • 4.2.3 Magnetic Force On A current-carrying Conductor
  • 4.3 Motion In A Magnetic Field
  • 4.4 Motion In Combined Electric And Magnetic Fields
  • 4.4.1 Velocity Selector
  • 4.4.2 Cyclotron
  • 4.5 Magnetic Field Due To A Current Element, Biot-savant Law
  • 4.6 Magnetic Field On The Axis Of A Circular Current Loop
  • 4.7 Ampere’s Circuital Law
  • 4.8 The Solenoid And The Toroid
  • 4.8.1 The Solenoid
  • 4.8.2 The Toroid
  • 4.9 Force Between Two Parallel Currents, The Ampere
  • 4.10 Torque On Current Loop, Magnetic Dipole
  • 4.10.1 Torque On A Rectangular Current Loop In A Uniform Magnetic Field
  • 4.10.2 Circular Current Loop As A Magnetic Dipole
  • 4.10.3 The Magnetic Dipole Moment Of A Revolving Electron
  • 4.11 The Moving Coil Galvanometer

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