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Question

In the circuit shown in figure initially key K1 is closed and keys K2 is open. Then K1 is opened and K2 is closed (order is important). [Take Qâ€²1 and Qâ€²2 as charges on C1 and C2 and V1 and V2 as voltage respectively. Then ]

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Solution

The correct options are

**A** charge on C1 gets redistributed such that V1=V2

**D** charge on C1 gets redistributed such that Q′1+Q′2=Q′

When Ray R1 is closed and Ray R2 is open, the capacitor C1 is charged by cell and when R1 is opened and R2 is closed, the charge stored by capacitor C1 gets redistributed between C1 and C2

When Ray R1 is closed and Ray R2 is open, the capacitor C1 is charged by cell and when R1 is opened and R2 is closed, the charge stored by capacitor C1 gets redistributed between C1 and C2

∴Charge on C1 and C2 in parallel combination,

∴their potential will be equal.

∴ V1=V2

Hence, Option A and D are correct.

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