A small dynamo with a secondary winding that produces a high voltage enabling a spark to jump between the poles of a spark plug in a gasoline engine; SYN. magnetoelectric machine.
small dynamo generating current producing spark that ignites fuel vapors in internal combustion engine.
Simple electric generator, often used to provide the electricity for the ignition system of motorcycles and used in early automobiles.
It consists of a rotating magnet that sets up an electric current in a coil, providing the spark.

1. Magnetic force
2. Magnetism; magnetic
3. Magnetoelectric
4. Magnetosphere