What is electromagnetic induction?

Electromagnetic induction is the phenomenon where an electric current is generated in a conductor when it is exposed to a changing magnetic field. This occurs when the conductor moves through a magnetic field or when the magnetic field around a stationary conductor changes. The principle behind this process can be attributed to Faraday's law of electromagnetic induction, which states that a change in magnetic flux through a circuit induces an electromotive force (EMF) in the circuit, prompting the flow of electric current.

Understanding this concept is crucial in various applications, such as in generators, transformers, and inductors, which rely on the principles of electromagnetic induction to convert mechanical energy into electrical energy or vice versa. This principle is foundational in electrical engineering and electronics, making it a key topic of study in understanding how electrical devices operate.