An electromagnet is based on which of the following effects of electric current?

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Magnetic effect of electric current

Heating effect of electric current

Chemical effect of electric current

Physical effect of electric current

answer is B.

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Detailed Solution

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.
An electromagnet consists of a coil wound around an iron core. When an electric current is passed through the conducting wire of an electromagnet, it starts acting like a magnet and as soon as the electric current is switched off, it loses its magnetism.

Therefore, we can say that the electromagnet is based on the magnetic effect of an electric current.

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