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Shows a long current carrying wire and t...

Shows a long current carrying wire and two rectangular loops moving with of velocity `v`. Find the direction of current in each loop.

Text Solution

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In loop (i) no emf will be induced because there is no flux change.
In loop (ii) emf will be induced because the coil is moving in a region of decreasing magnetic field inward in direction. Therefore to oppose the flux decrease in inward direction, current will be induced seen that its magnetic field will be inwards. For this direction of current should be clockwise.
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