Ignition Coil

An ignition coil is an essential component of the ignition system in a vehicle. Its main function is to convert the low voltage from the battery into a high voltage needed to create a spark in the spark plugs. This spark ignites the air-fuel mixture in the engine's combustion chamber, which in turn powers the vehicle.

The ignition coil consists of two coils of wire, known as the primary and secondary windings. The primary winding is connected to the battery and the ignition switch, while the secondary winding is connected to the spark plugs. When the ignition switch is turned on, it sends a low voltage current through the primary winding. This current creates a magnetic field around the coil.

When the current is suddenly interrupted, such as when the ignition switch is turned off, the magnetic field collapses. This collapse of the magnetic field induces a high voltage current in the secondary winding. This high voltage is then sent to the spark plugs, where it creates a spark to ignite the air-fuel mixture.

Ignition coils are typically made of a metal core, which helps to amplify the magnetic field, and insulated copper wire for the windings. They are usually located near the engine and can be easily identified by their cylindrical shape.

In summary, an ignition coil is a crucial component of the ignition system that converts low voltage from the battery into high voltage to create a spark in the spark plugs, ultimately powering the vehicle's engine.