DC motors rely on DC electric drive motors, is widely used in small applications. Following is the schematic diagram of DC motor: this is a simple direct current (D.C). electric motor. After when the coil is energized, it generates a magnetic field around the rotor, the rotor is pushed away from the left side of the magnet to the left of, and are drawn to the right, resulting in rotation. Rely on the inertia of the rotor continues to rotate. When you run to a horizontal position when the rotor current converters will be the current directions reversed, the magnetic field produced by the coil is also reversed, so that this process can be repeated.