how starter motors work

The video tutorial explains the operation of a solenoid coil in a starter motor. It covers the roles of the pulling and holding coils, the flow of electricity, and the creation of a magnetic field. The interaction between the electromagnetic field and the rotor is detailed, leading to the rotation of the flywheel. The process of transitioning from the starter motor to the engine is also explained, including the role of the alternator in recharging the battery.

What happens to the pinion gear when the combustion engine starts running?

How does the alternator contribute to the battery's functionality after the engine starts?