Posted On: Sep 23, 2020
A type of magnet in which the magnetic field is generated because of electric current is called an electromagnet. These electromagnets are formed of wire wound into a coil. When current flows through the wire it generates a magnetic field in the center of the coil. Current passes through the magnetic core made from a ferrimagnetic or ferromagnetic material generate a powerful magnet.
It has a great advantage over a permanent magnet as it is very easy to control the magnetic field simply by controlling the flow of the current. The main limitation is that it requires electric current in comparison with the permanent magnet which does not need any.
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