Question

What are the advantages of electromagnets

Answer 1

Answer:

There are many advantages of electromagnets over permanent magnets such as :-

1. They are more powerful then permanent ones
2. They can simply turned on when needed and off when not.
3. Their polarities can be changed easily.

Answer 2

Explanation:

1. It can be turned on or off by cutting of electric current.

2. It is easy to use and help in many medical and casual things.

3. It led to the discovery of the electromagnetic spectrum.