eddy current

eddy current

noun
an electric current in a conducting material that results from induction by a moving or varying magnetic field.

Origin:
1590–1600, for an earlier sense
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Eddy current is always a great word to know.
So is lollapalooza. Does it mean:
the offspring of a zebra and a donkey.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
eddy current
 
n
Also called: Foucault current an electric current induced in a massive conductor, such as the core of an electromagnet, transformer, etc, by an alternating magnetic field

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Encyclopedia Britannica
Encyclopedia

eddy current

in electricity, motion of electric charge induced entirely within a conducting material by a varying electric or magnetic field or by electromagnetic waves. Eddy currents induced in a power transformer core represent lost power and are undesirable; eddy currents used to produce heat for cooking or for a metallurgical furnace represent useful applications of the phenomenon.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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