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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 ampere-turn, Ampère turn. Elec. A unit of magnetomotive force equal to the product of one complete convolution (of a coiled conductor) into one ampère of current; thus, a conductor having five convolutions and carrying a current of half an ampère is said to have 2½ ampère turns. The magnetizing effect of a coil is proportional to the number of its ampère turns.
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From: WordNet (r) 2.0

 ampere-turn
      n : a unit of magnetomotive force equal to the magnetomotive
          force produced by the passage of 1 ampere through 1
          complete turn of a coil; equal to 1.257 gilberts