electromagnet, device consisting of a core of magnetic material surrounded by a coil through which an electric current is passed to magnetize the core. An electromagnet is used wherever controllable magnets are required, as in contrivances in which the magnetic flux is to be varied, reversed, or switched on and off.
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current flowing through a coil of wire. It is created by wrapping an insulated wire around a core made of ferromagnetic material such as iron.
When an electric current is passed through the wire, it generates a magnetic field around the coil, resulting in a temporary magnet.
The strength and polarity of the electromagnet can be controlled by varying the amount and direction of the electric current flowing through the coil. Electromagnets are widely used in various applications such as motors, generators, speakers, transformers, magnetic levitation systems, and many more.
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electromagnet, device consisting of a core of magnetic material surrounded by a coil through which an electric current is passed to magnetize the core. An electromagnet is used wherever controllable magnets are required, as in contrivances in which the magnetic flux is to be varied, reversed, or switched on and off.
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