What is electromagnetic induction?
PhysicsClass 10CBSEAnswered 28 May 2026
Answer
Electromagnetic induction is the generation of EMF in a conductor when the magnetic flux through it changes. Discovered by Michael Faraday in 1831.
Faraday's Law: EMF = −dΦ/dt (negative sign = Lenz's Law — induced current opposes change)
Applications: Electric generators, transformers, electric motors, induction cooktops, microphones.
Electromagnetic induction is the generation of EMF/current by a changing magnetic field the foundational principle behind generators and transformers.
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