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MHT CET 2025 (21 Apr, Shift 2) · Rotating Conductors & AC Generator

Rotating Conductors & AC Generator question from MHT CET 2025 (21 Apr, Shift 2)

Q7MHT CET 2025 · 21 APR · SHIFT 2Easy

Rotating Conductors & AC Generator

What is the phase difference between the flux linked with a coil rotating in a uniform magnetic field and the induced e.m.f. produced in it?

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Answer: (d)

Flux $\phi = NBA\cos\omega t$ .
emf $e = -\dfrac{d\phi}{dt} = NBA\omega\sin\omega t$
$\sin$ and $\cos$ differ in phase by $\dfrac{\pi}{2}$ , so the answer is (d).

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