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State whether true or false : Soft iron is used in electromagnets because soft iron does not retain magnetism permanently. A True B False
State whether true or false : Soft iron is used in electromagnets because soft iron does not retain magnetism permanently.
A True
B False
Physics | Previous Year Question Papers
State whether true or false : Soft iron is used in electromagnets because soft iron does not retain magnetism permanently.
A True
B False

Correct option is A True
Soft iron core is used in electromagnets because soft iron does not retain magnetism permanently, that is, it loses the magnetism as soon as magnetic field is removed. Hence it behaves as a more efficient electromagnet

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