Electric motor
Electric motor An electric motor is rotating machine or device that converts the electrical energy to mechanical energy. An electric motor is consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of magnetic field. The rectangular coil of the arms AB and CD are kept in such a manner that both rms are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q of a split ring. The inner side of the halves are insulated and attached to the axle. The external conducting edges of P and Q touch the two conducting stationary brushes X and Y respectively. Working :-- A source of battery is used to enter the current in the coil through conducting brushes X and flows back to the battery through brush Y. Now , the current in the arms of the rectangular coil AB is flowing from A to B And the current in the