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A straight conductor of length 4 metres ...

A straight conductor of length 4 metres move at a speed of `10 m/sec` when the conductor makes an angles of `30^@`with the direction of magnetic field of indcution `0.1 Weber per meter^2`. Then the induced e.m.f. is

A

1 volt

B

2 volt

C

4 volt

D

8 volt

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