A conducting loop is moving from left to right through a region of uniform magnetic field (B). Its four positions are shown below. Show the direction of induced current in all four positions.

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Ques:  A conducting loop is moving from left to right through a region of uniform magnetic field (B). Its four positions are shown below. Show the direction of induced current in all four positions.


Ans: In situation 1 and 3 flux is constant and not changing with time, so there will not be any current induced. In situation 2 the loop is gradually getting into the magnetic field so overlapped area is increasing, so flux is increasing & hence the induced current will have the tendency to create B field in opposite direction i.e. in outward direction. Hence, anticlockwise current will be induced in the loop in situation 2. In situation 4 the loop is gradually getting out of the field, flux is decreasing, so induced current will support the B field. Current induced will be clockwise.


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