An electric motor primarily converts electrical energy into mechanical energy. An electric motor is a device that works on the principle of electromagnetic induction. When an electric current is passed through a coil of wire that is placed in a magnetic field, a force is generated on the wire, causing it to rotate. This rotational motion is then used to power various machines and devices, such as fans, pumps, and machinery. Thus, an electric motor converts electrical energy into mechanical energy, which can be used for various applications.