A wheel with 20 metallic spokes each of length 0.8 m long is rotated with a speed of 120…
Physics · Class 12 · CBSE — Electromagnetic Induction
A wheel with 20 metallic spokes each of length 0.8 m long is rotated with a speed of 120 revolution per minute in a plane normal to the horizontal component of earth magnetic field H at a place. If H = 0.4 × 10–4 T at the place, then induced emf between the axle and the rim of the wheel is
- 2.3 × 10–4 V
- 3.1 × 10–4 V
- 2.9 × 10–4 V
- 1.61 × 10–4 V
Answer
(D) 1.61 × 10 –4 V
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