What is the role of electromagnetism in electric motors?

Electromagnetism is the core principle behind electric motors. When electric current flows through a wire coil within a magnetic field, it creates a force that causes the coil to spin. This is due to the interaction between the magnetic field created by the current and the external magnetic field. As the coil rotates, mechanical energy is produced from electrical energy. This process is reversible in generators. Electric motors are used in countless devices—fans, pumps, cars, and appliances. The efficiency and reliability of these motors come from a deep understanding of electromagnetic laws.