The ignition coil is used to

SOLUTION

Concept:

Ignition coil:

• The ignition coil is used to step up low voltage to high voltage from 12 V to 22,000 V and supply it to the spark plug with the help of a distributor to generate sparks.
• It consists of two windings, one wound over the soft iron core.
• The secondary winding is wound over the core and It consists of about 21,000 turns. 

• One end of the winding is connected to the secondary terminal and the other end to the primary winding.
• The primary winding is wound over the secondary winding and consists of about 200-300 turns.
• The ends are connected to the external terminal of the coil.
• The Bakelite cap insulates the secondary terminal from the container and primary terminals.

Distributor:

• A distributor is a component in a spark ignition system that channels high voltage pulses from the ignition coil to the spark plugs.

• Distributors are typically driven by the camshaft, which causes them to rotate at exactly one half the speed of the crankshaft. 
• This precise timing is what allows a distributor to provide voltage to each spark plug at the correct time and in the proper sequence which is nothing but the firing order.

Battery:

• The battery is installed for providing the necessary voltage which can be further step upped to create a spark in the SI engines which is important for combustion.