What was Lenz law

1.	What was Lenz law
Answer» Lenz law of electromagnetic induction states that, when an emf induces according to Faraday’s law, the polarity (direction) of that induced emf is such that it opposes the cause of its production. According to Lenz’s law,E = –dφ/dtThe negative sign shows that the direction of the induced emf and the direction of change in magnetic fields have opposite signs. Suppose we have a coil and a bar magnet.

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