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Question 23.6: In Fig. 23.11, let C1 = 6µF and C2 = 3µF, and ΔV = 18 V. Fin......

In Fig. 23.11, let C_{1}  =  6µF  and  C_{2} = 3µF, and ΔV = 18 V. Find the equivalent capacitance as well as the charges on C_{1}  and  C_{2}.

fig 23.11
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The equivalent capacitance of the parallel combination is:
C_{eq}  =  C_{1}  +  C_{2} = 6µF + 3µF = 9 µF

The magnitudes of the charges Q_{1}  and  Q_{2} on the two capacitors are:
Q_{1}  =  C_{1}ΔV = (6µF)(18 V) = 108 µC
Q_{2}  =  C_{2}ΔV = (3µF)(18 V) = 54 µC

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