Q.
In the circuit shown here, C1=6μF,C2=3μF and battery B=20V. The switch S1 is first closed. It is then opened and afterwards S2 is closed. What is the charge finally on C2 ?
3714
222
Electrostatic Potential and Capacitance
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Solution:
Common potential, V=(6+3)6×20+3×0 =9120 volt
So, charge on 3μF capacitor, Q2=3×10−6×9120=40μC