A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be____________?
Correct answer: C. 25V
- A. 10 V
- B. 15 V
- C. 25V
- D. 50V
Explanation
For a conductor moving perpendicular to a magnetic field, the induced emf is e = Blv = 1 × 2 × 12.5 = 25 V. Since the motion is at right angles, sin 90° equals 1.
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