} }

Electric Current and its Effects

Electric Current and its Effects > Ask Question to Alfie
cee
Hi
What are the advantages of electromagnets over permanent magnets?
user
cee
The advantages of electromagnets over permanent magnets are -:
1. The magnetism of electromagnet can be switched OFF or ON as desired. While it is not possible with permanent magnet 2. The strength of an electromagnet can be varied as desired which is not possible in a permanent magnet.
cee
Some of the learners also asked:
What is the difference between electromagnet and bar magnet?
speak