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单词 induction coil
释义

WordReference Random House Unabridged Dictionary of American English © 2024
induction coil′, [Elect.]
  1. Electricitya transformer for producing high-voltage alternating current from a low-voltage direct current, consisting essentially of two concentric coils with a common soft-iron core, a primary coil with relatively few windings of heavy wire, and a secondary coil with many turns of fine wire. Excitation of the primary coil by rapidly interrupted or variable current induces high voltage in the secondary coil. Also called Ruhmkorff coil. 
  • 1875–80

Collins Concise English Dictionary © HarperCollins Publishers::
induction coil n
  1. a transformer for producing a high voltage from a low voltage. It consists of a cylindrical primary winding of few turns, a concentric secondary winding of many turns, and often a common soft-iron core
    Sometimes shortened to: coil
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