Question

Differences between a permanent magnet and electromagnet edit answer

Answer 1

electromagnet is a temporary magnet but temporary magnet is not

Answer 2

The differences between permanent magnet and electromagnet are as follows :-

⇒ The permanent magnet does not have electric current flow through it.

⇒ Electromagnets are made by passing electric current through it.

⇒ The strength of the magnetic field in permanent magnets cannot be changed.

⇒ The strength of the electromagnets can be changed by changing the amount of current in the magnet.

⇒ The direction of the magnetic field cannot be changed.

⇒ The direction of magnetic field can be changed in electromagnets.

⇒ The polarity of permanent magnets cannot be changed.

⇒ The polarity of the electromagnets can be changed.

⇒ The permanent magnet is generally made of hard iron.

⇒ The electromagnets are generally made of soft iron.