The electromagnet is positioned between the poles of another magnet. When current from the voltage supply flows through the coil, a magnetic field can be produced around the electromagnet. The poles of the magnet interact with the poles of the electromagnet, leading to the motor to 
turn. ... The more coils, the Electromagnetic Motor stronger the motor.
When a power current flows through a loop or coil of wire, positioned between the two poles of an electromagnet, the electromagnet exerts a magnetic force upon the wire and causes it to rotate. The rotation of the wire starts the motor. As the wire rotates, the electric energy changes directions.