Two identical capacitors A and B each having capacitance C and initial plate separation d are connected in parallel to a battery of emf V with the help of switch S. Initially the switch is kept closed for long time and then at t = 0 switch is opened. Simultaneously at t=0 the plate 2 of A state moving rightwards with constant speed v_0(with the help of some external unspecified force) and plate 4 of B starts moving leftwards with same constant speed. Plates 1 and 3 are kept fixed. The charge on capacitor B as function of time

Two identical capacitors A and B each having capacitance C and initial

1.	Two identical capacitors A and B each having capacitance C and initial plate separation d are connected in parallel to a battery of emf V with the help of switch S. Initially the switch is kept closed for long time and then at t = 0 switch is opened. Simultaneously at t=0 the plate 2 of A state moving rightwards with constant speed v_0(with the help of some external unspecified force) and plate 4 of B starts moving leftwards with same constant speed. Plates 1 and 3 are kept fixed. The charge on capacitor B as function of time
Answer» `CV[1+(v_0t)/(2D)]` `CV[1+(2v_0t)/(d)]` `CV[1+(v_0t)/(d)]` CV Answer :C

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