#induction_coil__inductioncoil  a coil for producing a high voltage from a low-voltage source
  supertype:  #coil  reactor consisting of a spiral of insulated wire that introduces inductance into a circuit
  subtype:  #ignition_coil  #spark_coil
  part of:  #transformer
  part:  #spark_gap__sparkgap  the gap between two high-potential terminals

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