A rod of length 0.5 m moves at 2 m/s perpendicular to a magnetic field of 0.5 T. What emf is induced between its ends?
Answer and explanation
Correct answer: B. 0.5 V
- Step 1: Motional emf .
- Step 2: V.
Answer
0.5 V.
Why not the others: 0.125 V: speed is divided. 2 V: length is divided. 1 V: the speed is squared.
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