ampere-turn

[am-peer-turn, am-peer-]

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

ampere-turn

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

Word History and Origins

Origin of ampere-turn¹

First recorded in 1880–85