American AI is usually American Airlines, and usually appears because of a baggage fee paid at the airport, or a purchase made during a flight. posted 09/11/2012 Helpful (4)
Electric motors are in general, a lot more efficient that internal combustion engines. An average combustion engine has about 18â20%. A formula one engine, has about 50% of an efficiency.
There are two types of electric engines used in EVs: brushless DC motors and three-phase induction AC motor. DC Motors operate off a coil or loop suspended between the poles of a magnet. A direct current of electricity generates a temporary magnetic field, causing it to turn and align with the polarity.