primary coil

Noun
  1. Coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit (synset 104008987)
    "current through the primary coil induces current in the secondary coil"
    is a type of: coil - reactor consisting of a spiral of insulated wire that introduces inductance into a circuit
    is a part of: transformer - an electrical device by which alternating current of one voltage is changed to another voltage
    same as: primary, primary winding

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