A coil with a flux linkage that falls uniformly from to zero in . What is the magnitude of the induced e.m.f.?

Answer and explanation

Correct answer: C.

  1. Step 1: Faraday's law: .
  2. Step 2: V.
Answer
.
Why not the others: : multiplies flux linkage by time. : gives the initial flux linkage. : gives the time interval.

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