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Electro-magnet

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
E`lec`tro-mag´net
n.1.A mass, usually of soft iron, but sometimes of some other magnetic metal, as nickel or cobalt, rendered temporarily magnetic by being placed within a coil of wire through which a current of electricity is passing. The metal is generally in the form of a bar, either straight, or bent into the shape of a horseshoe.
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But this fact that an electro-magnet would set a tuning-fork humming was new to Bell and very attractive.
The History of the Telephone by Casson, Herbert N. View in context
The electricity produced passes forward, where it works, by electro-magnets of great size, on a system of levers and cog-wheels that transmit the movement to the axle of the screw.
20,000 Leagues Under The Sea by Verne, Jules View in context
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