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The magnitude of the induced emf is equal to the time rate of change of ______.

Asked in GSEB Board March 2020 · Applications and conceptual

Answer: (3) Magnetic flux

Step-by-step solution

Idea: Faraday's law of electromagnetic induction.

The magnitude of the emf induced in a circuit equals the time rate of change of the magnetic flux linked with it: |ε| = |(dΦ_B)/(dt)|.

For a coil of N turns, |ε| = N|(dΦ_B)/(dt)|.

So the answer is magnetic flux.

Why the other options are wrong

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