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Written by:

Thomas A


Date added:

August 30, 2014








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2 / 349


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He discovered that a magnet had two magnetic poles North and South poles. In the 1600's Willam Gilbert concluded that the earth itself is a giant magnet with north and south poles. Magnets and Electricity In 1820 a danish physicist and chemist Hans Christian discovered that when an electric current flows through a wire it causes the compass needle to rotate...
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This proved that magnetism and electricity were related. Also in 1820 Andre Marie a french physicist worked out the mathematical relationship between the current of electricity and the strength of th magnetic field. He also had a theory that the electric current in atoms had a magnetic field. In 1830 Micheal Faraday an english scientist and Joseph henery an american ohysicist discovered that a changing magnetic field produced a current in a coil of wire...
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