Question

Explain electromagnetic indiction. State lenz's law. Define magnetic flux with units...!​

Answer 1

Answer:

Lenz's law, named after the physicist Emil Lenz (pronounced /ˈlɛnts/) who formulated it in 1834, states that the direction of the electric current which is induced in a conductor by a changing magnetic field is such that the magnetic field created by the induced current opposes changes in the initial magnetic field.

Answer 2

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Lenz's law states that when an emf is generated by a change in magnetic flux according to Faraday's Law, the polarity of the induced emf is such, that it produces a current whose magnetic field opposes the change which produces it.

Mathematically,

( : Emf ; N : Number of turns ; : Magnetic Flux)

Here the negative sign is due to the Lenz's law.