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## Homework Statement

Three capacitors C1–C3, all initially uncharged, are placed in the circuit shown. The capacitances are C1=8.9 μF, C2=20 μF, C3=12.2 μF, and the battery voltages are V1=18 V, V2=10 V, V3=18 V.

What is the magnitude q1 of the charge on capacitor C1 once equilibrium has been established? Answer (given but I can't get it on my own): 0.000121 C

What is the magnitude q2 of the charge on capacitor C2 once equilibrium has been established? Answer (given but I can't get it on my own): 0.000287 C

What is the magnitude q3 of the charge on capacitor C3 once equilibrium has been established? Answer (given but I can't get it on my own): 0.000166 C

## Homework Equations

Potential across each pair of battery / capacitor is the same.

## The Attempt at a Solution

Equate the potential gain / drop from each branch to one another. But only get two equations (third is redundant) and have three unknowns.

Thanks in advance for any help.

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