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Question: The formula for induced e.m.f. in a coil due to change in magnetic flux through the coil is (here A = area of the coil, B = magnetic field)

1) $e = - A.\frac{{dB}}{{dt}}$

2) $e = - B.\frac{{dA}}{{dt}}$

3) $e = - \frac{d}{{dt}}(A.B)$

4) $e = - \frac{d}{{dt}}(A \times B)$

Solution:

Explanation: No Explanation

Faraday's Law and Lenz's Law

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