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Q.

In an electromagnet, the magnetic field is produced by [[1]].


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Detailed Solution

In an electromagnet, the magnetic field is produced by electric current.
Electromagnet: It is a device which produces a magnetic field by an electric current. It consists of a wire turned into a coil. A simple solenoid is an example of an electromagnet. It is used in motors, generators, loudspeakers, MRI machines etc. The disadvantage of the electromagnet is that they heat up very fast and consume a lot of energy.
 
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