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Question

Both capacitors are initially uncharged and then connected as shown and switch is closed. What is the potential difference across the 3 μF capacitor?


A
30 V
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B
10 V
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C
25 V
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D
None of these
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Solution

The correct option is B 10 V
Let q charge flow through the citcuit, then using Kirchhoff's law
19+15q39q2=0
255q6=0q=30 μC
P.D. across 3 μF is V=30μC3μF=10 V

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