Electromagnetic induction is the process of generating electricity in a conductor by moving it through a magnetic field or by changing the magnetic field around it.
Electromagnetic induction works by creating a magnetic field around a conductor, which can be achieved by either moving the conductor through a stationary magnetic field or by changing the magnetic field around the conductor. This movement or change in magnetic field creates an electric current in the conductor.
Electromagnetic induction has many practical applications, such as in generators, transformers, motors, and wireless charging technology. It is also used in devices like induction cooktops and metal detectors.
Electromagnetic induction was discovered by English scientist Michael Faraday in 1831. He found that when a magnet is moved through a coil of wire, it induces a current in the wire.
Faraday's law of electromagnetic induction states that the magnitude of the induced electromotive force (EMF) in a closed circuit is proportional to the rate of change of the magnetic flux through the circuit. In other words, the faster the magnetic field changes, the greater the induced EMF and current in the circuit. This is the basis for understanding and applying electromagnetic induction in various technologies.