Tesla’s AC motor was a marvel of engineering at its time. It was the part of the electric system that enabled Westinghouse, and his company to outdo Edison’s DC company. The motor worked by using two different alternating currents. When one system peaks, the other is at a trough of its power wave. This causes the motor to turn towards the coils of copper wires that are arranged in a circle. As the power flips back and forth one hundred and twenty times a second the wire flips back and forth very quickly. Doing this took away the need for the brushes that transfered the electrical power from AC into DC for use in motors.
