Question

Difference between electromagnet and permanent magnet in tabular form

Answer 1

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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.