Question

Write any four uses of electromagnets.

Answer 1

1. Magnets are categorized into permanent and temporary magnets.
2. Those temporary magnets which produce a magnetic field when electricity is passed through them are called electromagnets.
3. These are widely used for different purposes than permanent magnets.

3.1 They are widely used in generators and transformers.

3.2 They are used in electric motors.

3.3 They are used in headphones and loudspeakers.

3.4 They are used in induction cookers and magnetic locks.