A) first flows from A to B and then from B to A
B) first flows from B to A and then from A to B
C) always flows from B to A
D) always flows from A to B
Correct Answer: B
Solution :
As insulator plate is passed between the plates of the capacitor, its capacity increases first and then decreases as the plate slips out. As a result, positive charge on plate A increases first and then decreases, hence, current in outer circuit flows from B to A and then from A to B.
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