[ am-peer-turn, am-peer- ]
/ ˈæm pɪərˌtɜrn, æmˈpɪər- /
one complete convolution of a conducting coil, through which one ampere of current passes.
the magnetomotive force produced by one ampere passing through one complete turn or convolution of a coil. Abbreviation: At
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Origin of ampere-turn
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for ampere-turn
a unit of magnetomotive force; the magnetomotive force produced by a current of 1 ampere passing through one complete turn of a coil. 1 ampere-turn is equivalent to 4π/10 or 1.257 gilbertsAbbreviation: At, A
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