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A conductor `PQ` , with `PQ=r` , moves with a velocity `v` in a uniform magnetic field of induced `B` . The emf induced in the rod is

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A conductor `PQ` , with `PQ=r` , moves with a velocity `v` in a uniform magnetic field of induced `B` . The emf induced in the rod is
A. `(vecv xx vecB).vecr`
B. `vecv.(vecrxxvecB)`
C. `vecB.(vecrxxvecv)`
D. `|vecrxx(vecvxxvecB)|`
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Correct Answer - A
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