Difference between bar magnet and electromagnet in tabular form

Asked by admin @ 23/08/2021 in Physics viewed by 321 People

Differentiate between bar magnet and electromagnet

Answered by admin @ 23/08/2021

In an electromagnet the magnetic field is created through electric current in a wire-wound coil and strengthened by a soft-iron core. As soon as you turn off the power, the soft-iron core loses its magnetisation.

A permanent magnet is made of ferromagnetic material, which is magnetised by a strong external magnetic field. The magnetically hard material that is used keeps part of its magnetisation after the external magnetic field is turned off.

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Difference between bar magnet and electromagnet in tabular form

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