Sentence Examples. Â» more... Propertius then may have been one of the first to comply with the new enactments. His refusal to comply with the pope's injunctions led to a renewal of the war.
A DC motor is an electric motor that runs on DC current. They are commonly found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, disk drives, and many more.
DC and AC motors have differing means of speed control. While DC motors are controlled by varying the armature winding's current, AC motors simply vary the frequency. An induction motor and a synchronous motor are two types of AC motors. An induction motor uses a magnetic field on a rotor that is created by an induced current. A synchronous motor is powered by a current through slip rings or a permanent magnet. Synchronous motors usually run much faster than induction motors because of the presence of slip rings. DC electric motor repair is much more expensive than AC electric motor repair. Paper producing machines and steel mill rolling machines are a few examples of a DC electric motor.