Moving charges indicate electricity and this is the current topic of interest. The relationship between electricity and magnetism was noted with the alignment of a needle with respect to circuits carrying electricity. It was discovered that its alignment is tangent to an imagined circle with a straight wire in the centre and a plane perpendicular to the wire. When current is passed, however, the needle's orientation shifts. The formation of a magnetic field is thought to be caused by the movement of charges. Topics included in this chapter 1. Introduction 2. Magnetic Force 3. Sources And Fields 4. Magnetic Field, Lorentz Force 5. Magnetic Force On A current-carrying Conductor 6. Motion In A Magnetic Field 7. Motion In Combined Electric And Magnetic Fields 8. Velocity Selector 9. Cyclotron 10. Magnetic Field Due To A Current Element, Biot-savart Law 11. Magnetic Field On The Axis Of A Circular Current Loop 12. Ampere’s Circuital Law 13. The Solenoid And The Toroid 14. The Solenoid 15. The Toroid 16. Force Between Two Parallel Currents, The Ampere 17. Torque On Current Loop, Magnetic Dipole 18. Torque On A Rectangular Current Loop In A Uniform Magnetic Field 19. Circular Current Loop As A Magnetic Dipole 20. The Magnetic Dipole Moment Of A Revolving Electron 21. The Moving Coil Galvanometer
As shown in Moving Charges and Magnetism NCERT Solutions, the magnetic field exerts a force on the forces around the current-carrying wires. It also demonstrates how currents are used to create magnetic fields. It has been observed that particles may be accelerated at quite a high energy within a cyclotron. The sources, magnetic fields, motion inside a magnetic field, and motion in a combination of electric and magnetic fields are all covered in the notes for Physics Class 12 Chapter 4. Aside from the principles that are presented, there are several derivations as well as mathematical sums to be aware of. To solve these problems, you'll need a thorough knowledge of the ideas presented in this chapter.