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A wheel with 10 metallic spokes each 0.5...

A wheel with 10 metallic spokes each 0.5m long is rotated with a speed of 120 rev/min in a plane normal to the horizontal component of earth's magnetic field `H_(E)` at a place. If `H_(E)=0.4G` at the place, what is the induced emf between the axle and the rim of the wheel? Note that `1G=10^(-4)T`.

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A wheel with 10 metallic spokes each 0.5 m long is rotated with a speed of 120 rev/min in a plane normal to the horizontal component of earth's magnetic field H_E at a place. If H_E 0.4 G at the place, what is the induced emf between the axle and the rim of the wheel ? Note that 1G =10^(-4)T.

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