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
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