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Electromagnet, device consisting of a solenoid (usually a cylindrical coil of insulated wire wound in the form of a helix), in which an iron core is...

Electric motors and generators, use of electromagnets

The magnetic field of a permanent magnet is strong enough to operate only a small practical dynamo or motor. As a result, for large machines,...

Electricity, relation to magnetism

Electricity, relation to magnetism ( Microsoft Corporation. All Rights Reserved.)

The force with which magnetic poles attract or repel each other depends on the strength of the poles and the distance between them. This relationship...

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- magnetized iron core: a magnet consisting of a core, often made of soft iron, that is temporarily magnetized by an electric current flowing through a coil that surrounds it

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	Advertisement Windows Live® Search Results Electromagnet - Wikipedia, the free encyclopedia An electromagnet is a type of magnet in which the magnetic field is produced by the flow of an electric current. The magnetic field disappears when the current ceases. Science Projects - Make an Electromagnet Energy Quest is the California Energy Commission's energy and environmental education site for students, parents and teachers. electromagnet - Definitions from Dictionary.com e·lec·tro·mag·net ... See all search results in Windows Live® Search Results

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