Subject: Physics | Topics:

The benefit of an electromagnet on the permanent magnet is which the magnetic field is quickly changed by controlling the volume of electric current from the winding. However, unlike a permanent magnet that has to have no power, an electromagnet requires a continuous supply of current to help keep the magnetic discipline. Electromagnets are used as components regarding other electrical products, such as magnetic motors, loudspeakers, hard devices and magnetic splitting up equipment.

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