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A straight line conductor of length 0.4 ...

A straight line conductor of length 0.4 m is moved with a speed of `7 m//s` perpendicular to a magnetic field of intensity `0.9 Wb//m^2`. The induced e.m.f. across the conductor is

A

5.04 V

B

1.26 V

C

2.52 V

D

25.2 V.

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