Are you a fan of the video game Red Alert? Even if you're not, a Tesla coil may not be unfamiliar to you. Basically, a Tesla coil is a man-made device that was invented in the late 19th century. It generates a high voltage of electricity. Similarly, your car's ignition system is like mini-Tesla coil because the system creates and processes electricity. Just like the Tesla coil, your vehicle uses an ignition coil to amplify your battery's primary charge into high-voltage electricity.
This coil is a pulse transformer that converts low-voltage energy from your battery's initial 6 or 12 volts to tens and thousands of volts. It's composed of primary and secondary windings, which route low-voltage energy until they are induced with the current needed for a high-voltage transformation. As the high current exits the terminals, it is then directed to the spark plugs, where it is used to start the engine.
Since your car can generate that much power, it needs to be tapped properly. To do this, it needs a sturdy and reliable ignition coil. With its help, your car's own Tesla coil can perform its function properly. Now you won't see Red Alert-like Tesla coil pulses that zap opposing soldiers, but it does keep your car going, and that's what matters.