alternator(redirected from Alternator Theory)
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in electricity, machine used to change mechanical energy into electrical energy. It operates on the principle of electromagnetic induction, discovered (1831) by Michael Faraday.
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A mechanical, electrical, or electromechanical device which supplies alternating current.
A generator of alternating current which is produced by the turning of its rotor.
A source of electrical power in aircraft that is akin to a generator except that it requires battery power to excite a magnetic field to enable the alternator to provide current.
an electrical machine that generates an alternating current