The magnitude of flux linked with coil varies with time as φ = 3t² + 4t + 7. The magnitude of induced e.m.f. at t = 2 s is (a) 3 V (b) 16 V (c) 10 V (d) 7 V

Answer: (b). |e| = (dφ)/(dt) = 6t + 4 At t = 2 s: |e| = 12 + 4 = 16 V So the answer is (b) 16 V.

The magnitude of flux linked with coil varies with time as φ = 3t² +… | MHT CET 2021 (23 Sep, Shift 1)

Q60MHT CET 2021 · 23 SEP · SHIFT 1Easy

Magnetic Flux & Faraday's Law

The magnitude of flux linked with coil varies with time as $\phi = 3t^{2} + 4t + 7$ . The magnitude of induced e.m.f. at $t = 2\text{ s}$ is

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Answer: (b)

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