Faraday's Law of Electromagnetic induction states that
1) When there is change of flux linked iwth a conductor then emf will be induced.
2) Induced emf will continue till the change in flux continues.
3) The induced emf is directly proportional to change of flux
Lenz law
It states that the induced emf is in the direction so as to oppose the cause producing it
Lenz law is in accordance with conservation of energu. If we are taking a magneti with north pole pointing towards the coil, then the magnetic field of coil due to induced emf will be in near end of magnet which repel magnet. So some work must be done against this force of repulsion which will be converted into electrical energy.
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