Both capacitors are initially uncharged and then connected as shown and switch is closed. What is the potential difference across the 3μF capacitor?
A
30V
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B
10V
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C
25V
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D
None of these
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Solution
The correct option is B10V Let q charge flow through the citcuit, then using Kirchhoff's law 19+15−q3−9−q2=0 25−5q6=0⇒q=30μC P.D. across 3μF is V=30μC3μF=10V