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According to Faraday's law of electromagnetic induction,

1. The direction of induced current is such that it opposes the cause producing it
2. The magnitude of induced emf produced in a coil is directly proportional to the rate of change of magnetic flux
3. The direction of induced emf is such that it opposes the cause producing it
4. None of the above

Correct answer: The magnitude of induced emf produced in a coil is directly proportional to the rate of change of magnetic flux

Solution

Faraday's law states that the induced emf in a circuit is proportional to the rate of change of magnetic flux through it. The opposition aspect belongs to Lenz's law, which gives the direction of induced current or emf.

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