What is electromagnetic induction?

Electromagnetic induction occurs when a changing magnetic field creates an electric current in a conductor. This principle was discovered by Michael Faraday and is fundamental to how generators and transformers work. When a magnet moves near a coil of wire or the magnetic field around the coil changes, it induces a voltage. This voltage drives current through a circuit. Induction allows for wireless charging, power transmission, and energy generation. It shows that electricity can be produced without direct contact, just by the movement or variation of a magnetic field.