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Two straight conducting rails form a rig...

Two straight conducting rails form a right angle where their ends are joined. A conducting bar in contact with the rails starts at the vertex at time t = 0 and moves with constant velocity v along them as shown in Fig. A magnetic field `vec(B)` is directed into the page. the induced emf in the circuit at any time t is proportional to

A

`t_(@)`

B

t

C

Voltage of source will lead the current through

D

`v^(2)`

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The correct Answer is:
B, D
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