Question

what is electromagnetic induction

Answer 1

Electromagnetic or magnetic inductionis the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery ofinduction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction.

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Answer 2

Electromagnetic induction (or sometimes just induction) is a process where a conductor placed in a changing magnetic field (or a conductor moving through a stationary magnetic field) causes the production of a voltage across the conductor.