Question

Write four uses of permanent magnets.

Answer 1

1. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field.
2. Example: refrigerator magnet

Four uses of permanent magnets are:

1. Permanent magnets are used in audio equipment like headphones, loudspeakers, etc.
2. Permanent magnets are used in MRI Scanners.
3. Permanent magnets are used in Hard Disc Drives in computers.
4. Permanent magnet is found in closing the door of a refrigerator.