A wheel with 10 metallic spokes each 0.5mHong is rotated with a speed of 120 rev/min in a planenormal to the earth's magnetic field at the place. Ifhe magnitude of the field is 0.4 G, the induced e.m.f.petween the axle and the rim of the wheel equal to1) 1.256 x 10-3 V2) 6.28 x 10-4 V3) 1.256 x 104 V4) 6.28 x 10-5 V

A wheel with 10 metallic spokes each 0.5mHong is rotated with a speed

1.	A wheel with 10 metallic spokes each 0.5mHong is rotated with a speed of 120 rev/min in a planenormal to the earth's magnetic field at the place. Ifhe magnitude of the field is 0.4 G, the induced e.m.f.petween the axle and the rim of the wheel equal to1) 1.256 x 10-3 V2) 6.28 x 10-4 V3) 1.256 x 104 V4) 6.28 x 10-5 V
Answer» A wheel with 10 metallic spokes each 0.5mHong is rotated with a speed of 120 rev/min in a planenormal to the earth's magnetic field at the place. Ifhe magnitude of the field is 0.4 G, the induced e.m.f.petween the axle and the rim of the wheel equal to1) 1.256 x 10-3 V2) 6.28 x 10-4 V3) 1.256 x 104 V4) 6.28 x 10-5 V

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