An electric motor is a device that converts electrical energy into mechanical energy. It works on the principle of electromagnetic induction, where a magnetic field is created by an electrical current flowing through a wire coil. This magnetic field interacts with the magnetic field of a fixed magnet, causing the coil to rotate and produce mechanical power. Electric motors are used in a wide variety of applications, from powering household appliances to driving electric cars. They are efficient, reliable, and environmentally friendly, making them a popular choice for many industries.