What are Lenz’s law, Ampere’s law and Faraday’s law?


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Lenz’s law : 

Whereas, Lenz’s law states that, the direction of the induced emf is such that the change is opposed.

Ampere’s law : 

Ampere’s law describes the relation between the induced magnetic field associated with a loop and the current flowing through the loop.

Faraday’s law : 

Faraday’s law states that, time varying magnetic field induces an electromotive force (emf) and an electric field.