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A half metre rod is rotating abou tone fixed end perpendicular to uniform magnetic field `4xx10^(-5)T` with angular velocity 720 rpm. The emf induced

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A half metre rod is rotating abou tone fixed end perpendicular to uniform magnetic field `4xx10^(-5)T` with angular velocity 720 rpm. The emf induced across its ends is
A. 0.24 V
B. 0.36 V
C. 0.12 V
D. 0.36 mV
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Correct Answer - D
`e=BA f`
`=B pir^(2)f`
`=(4xx10^(-5)xx3.14xx0.25xx720)/(60)`
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