Final answer:
Electromagnetic induction is the production of an electric current by a changing magnetic field.
Step-by-step explanation:
The production of an electric current by a changing magnetic field is known as electromagnetic induction. This phenomenon was first discovered by Michael Faraday in the early 19th century. It occurs when a conductor, such as a wire, moves within a magnetic field or when a magnetic field changes around a stationary conductor.
Learn more about Electromagnetic induction