Cars & Driving
- noun the inner winding of the ignition coil; typically 20,000 to 30,000 turns of very fine wire.
- In a transformer, the winding that provides the output to the load or loads. There may be multiple secondary windings, while the winding that is directly connected to the input power is the primary winding. For example, a primary winding accepts the input energy an AC line provides, while a secondary winding provides the energy to the load at a different voltage. Its abbreviation is sec, and its symbol is S. Also called secondary (3), or secondary coil.
- synonymsecondary coil