Problem

Three capacitors of capacities

1 \text{ F}

2 \text{ F}

and

3 \text{ F}

are charged by

10 \text{ V}

20 \text{ V}

and

30 \text{ V}

respectively. Now, positive plates of first two capacitors are connected with the negative plate of third capacitor on one side and negative plates of first two capacitors are connected with positive plate of third capacitor on the other side. Find (a) common potential

V

(b) final charges on different capacitors

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