# Physics Revision Notes for Class 12 for Chapter 4 Moving Charges and Magnetism

Although we have known both electricity and magnetism for about 2000 years now, it was only 200 years ago we realised that they were intimately related. The chapter explains the relationship between magnetism and electricity in detail.

## CBSE Notes Class 12 Physics Chapter 4 Moving Charges And Magnetism

In this chapter, one learns about the following topics:

• The force exerted by the magnetic field on moving charged particles like protons, electrons and current-carrying wires.
• How magnetic field is produced by a current carrying conductor
• How particles are accelerated to high energies in cyclotrons
• How voltages and currents are detected by a galvanometer

To help you effectively prepare for exams, a concise revision notes for CBSE Class 12 Physics Chapter 4 Moving Charges and Magnetism is provided here. This is regarded as a great resource to refer to while revising for exams.

 Biot Savart Law Magnetic Moment Cyclotron Magnetic Force

## Frequently asked Questions on CBSE Class 12 Physics Notes Chapter 4: Moving Charges and Magnetism

Q1

### What is a ‘moving charge’?

Any moving charge is an electric current, whether or not the charge is flowing through a material or not.

Q2

### What are the uses of magnets?

1. Toys 2. Compasses 3. Hospitals 4. Fridge magnets 5. Jewellery

Q3

### What does the ‘Biot Savart law’ state?

The Biot Savart Law states that it is a mathematical expression which illustrates the magnetic field produced by a stable electric current in the particular electromagnetism of physics.