Electromagnetic Induction

Definition

Electromagnetic induction is the process of generating an electric current in a conductor by changing the magnetic field around it. It occurs when there is relative motion between a conductor and a magnetic field or when there is a change in the magnetic field strength.

Related terms

Faraday's Law:

This law states that the magnitude of induced electromotive force (emf) in a circuit is directly proportional to the rate of change of magnetic flux through that circuit.

Lenz's Law:

Lenz's law states that the direction of an induced current will always be such as to oppose the change producing it.

Transformer:

A transformer is a device used to increase or decrease alternating voltages using electromagnetic induction. It consists of two coils wound around an iron core and operates based on Faraday's law.