define electromagnet ??
anyone ??
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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 center of the coil.
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An electromagnet is a temporary magnet produced by current flowing through a solenoid with soft iron core. The magnetic field remains only when the current is flowing, in absence of current it has no magnetic effect
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