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moving coil

British  

adjective

  1. denoting an electromechanical device in which a suspended coil is free to move in a magnetic field. A current passing through the coil causes it to move, as in loudspeakers and electrical measuring instruments, or movement of the coil gives rise to induced currents, as in microphones and some record-player pick-ups

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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He found that when a coil of wire was moved through a magnetic field, there was a current of electricity induced in the moving coil.

From Autobiography of an Electron Wherein the Scientific Ideas of the Present Time Are Explained in an Interesting and Novel Fashion by Gibson, Charles R. (Charles Robert)