Coil

• induction coil

  A coil for producing a high voltage from a low-voltage source.

• primary

  Coil forming the part of an electrical circuit such that changing current in it induces...

• secondary coil

  Coil such that current is induced in it by passing a current through the primary...

Also contains

• step-up transformer

  A transformer that increases voltage.

• voltage regulator

  A transformer whose voltage ratio of transformation can be adjusted.

• step-down transformer

  A transformer that reduces voltage.

• Tesla coil

  A step-up transformer with an air core; used to produce high voltages at high freque...

• coil

  A transformer that supplies high voltage to spark plugs in a gasoline engine.