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A unit of magnetomotive force in the meter-kilogram-second system equal to the magnetomotive force around a path linking one turn of a conducting loop carrying a current of one ampere.
(Units) 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. Abbreviation: At or A
a unit of magnetomotive force equal to the force produced by one ampere passing through one complete turn or convolution of a coil. Abbr.: At