Difference between permanent magnet and Electromagnet .
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1
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Permanent magnet strength depends upon the material used in its creation. The strength of an electromagnet can be adjusted by the amount of electric current allowed to flow into it. As a result, the same electromagnet can be adjusted for different strength levels.
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Answer :
Electromagnet :-
It is made up of soft iron.
The magnetic field strength can be changed.
The magnetic field is very strong.
The polarity of an electromagnet can be reversed.
It can be easily demagnetised.
Permanent magnet :-
It is made up of steel.
The magnetic field strength cannot be changed.
The magnetic field is not that strong.
The polarity of an permanent magnet cannot be reversed.
It cannot be easily demagnetised.
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