What are the three uses of a permanent magnet?

Answer 1

Three uses of a permanent magnet are:

1. In the needles of compasses which are used to navigate airplanes and ships;

2. In fridge door seals, to hold the doors closed;

3. In loudspeakers and microphones, which need to have permanent magnets as well as electromagnets to work.

Answer 2

electro magnents are used in motors, televisions, electric canes cars and computers

Answer 3

they can b used 2 separate magnetic material from the junk