How does an electromagnet differ from a permanent magnet
Asked by admin @ in Science viewed by 327 People
How is an electromagnet different from permanent magnet
Asked by admin @ in Science viewed by 327 People
How is an electromagnet different from permanent magnet
Answered by admin @
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.
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