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State Lenz's law....

State Lenz's law.

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The direction of the induced current in a circuit is given by Lenz.s law. It states that the induced currect is always in such a direction as to oppose the cause which is producting it. Lenz.s law is just an illustration of the law of conservation of energy . If `dPhi` is positive, then induced emf will be negative and if `dPhi` is negative then the induced emf will be positive.
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