Q.

Two capacitors having capacitance C1 and C2 respectively are connected as shown in figure. Initially, capacitor C1 is charged to a potential difference V volt by a battery. The battery is then removed and the charged capacitor C1 is now connected to uncharged capacitor C2 by closing the switch S. The amount of charge on the capacitor C2, after equilibrium is:

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a

C1C2C1+C2V

b

C1+C2C3C3V

c

C1+C2V

d

C1-C2V

answer is A.

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Detailed Solution

Initially the total charge on the C1 which is C1V,

Now this charge is distributed among both the capacitors.

Common potential is C1VC1+C2

So charge on capacitor C2 is given by C1C2C1+C2V

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