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Which, among the following, is the formula for induced emf?

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in Basic Electrical Engineering by (88.7k points)
Which, among the following, is the formula for induced emf?

(a) e=dϕ /dt

(b) e=dt/dϕ

(c) e=t*ϕ

(d) e=t^2ϕ

This question was addressed to me in final exam.

The doubt is from Magnitude of the Generated or Induced EMF in division Electromagnetism of Basic Electrical Engineering

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Right answer is (a) e=dϕ /dt

The explanation is: The formula for induced emf is e = dϕ /dt because the induced emf is the flux linkage per unit time.

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