Topic: surplus

Electric motors are a device that converts electricity in mechanical energy. Electric motors' principles depend on the law of electromagnetism. This law states that when conductors transmit electricity at an angle that's right to the magnetic field, it creates an electric force. They can be powered with direct current (DC) or direct current (DC) sources, for instance from batteries or rectifiers, or by alternating current (AC) sources such as electric generators and power grids. They can be ...