Cars & Driving

  • noun an electrically energized coil of insulated wire which produces a magnetic field within the coil, usually used to pull a movable iron core/plunger to a central position within the coil; used as an actuating device, e.g. for valves


  • An electromagnetic coil used to activate a mechanical device or switch.


  • An electromechanical device which incorporates a coil wound around a movable core, and which produces a magnetic field when a current flows through it, inductively moving said core. The core is usually consists of a ferromagnetic cylindrically-shaped plunger or rod. Used, for instance, to convert electrical energy into the mechanical energy utilized to operate electromechanical devices and equipment.
  • A coil which has been wound into the shape of a cylinder. When a moveable ferromagnetic core is inserted in its center, the result is a solenoid (1). Also called solenoid coil (2).