Faraday's Law of Electromagnetic Induction states that a changing magnetic field can induce an electric current in a conductor, and the magnitude of the induced current is directly proportional to the rate of change of the magnetic field.
Michael Faraday, a British scientist, discovered the law in the early 19th century through his experiments with electricity and magnetism.
In generators, Faraday's Law is used to convert mechanical energy into electrical energy. As the magnetic field of a spinning rotor changes, it induces an electric current in the surrounding coils of wire.
Faraday's Law describes the relationship between a changing magnetic field and an induced electric current, while Lenz's Law states that the direction of the induced current will oppose the change in the magnetic field that caused it.
Faraday's Law is used in various technologies such as generators, transformers, and induction cooktops. It also plays a crucial role in the operation of electric motors, power plants, and many other electrical devices.