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A wheel with 10 metallic spokes each 0.5...

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 1 G = `10^(–4)` T.

A

`1.256 xx 10^(-3)` V

B

`6.28 xx 10^(-4)` V

C

`1.256 xx 10^(-4)` V

D

`6.28 xx 10^(-5)` V

Text Solution

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The correct Answer is:
D
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