ampere-turn

American  

[am-peer-turn, am-peer-] / ˈæm pɪərˌtɜrn, æmˈpɪər- /

noun

Electricity.

1. one complete convolution of a conducting coil, through which one ampere of current passes.

2. the magnetomotive force produced by one ampere passing through one complete turn or convolution of a coil. At

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ampere-turn British  

noun

1. Abbreviation: At.   A.  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 gilberts

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Etymology

Origin of ampere-turn

First recorded in 1880–85