explain electromagnet
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An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.
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An electromagnet is a device that sends electricity through a coil of wire to produce a magnetic field. ... Electromagnets are used in millions of devices around the world, from hard disk drives and MRI machines, to motors and generators.
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