Question

Difference between electromagnet and permanent magnet in tabular form

Answer 1

Electromagnet are formed when electricity is passed through the iron articles. They are temporary because when there is no flow of electricity they stop working while in permanent magnet it doesn't need electricity to work where's it is permanent in nature example.the bar magnets,the horseshoe magnet etc. are some example of permanent magnets

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.