(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In figure 25-29, a potential difference of V = 100 V is applied across a capacitor arrangement with capacitances C1 = 13.0 µF, C2 = 6.76 µF, and C3 = 4.14 µF. If capacitor 3 undergoes electrical breakdown so that it becomes equivalent to conducting wire, what is the increase in (a) the charge in microcoulombs on capacitor 1 and (b) the potential difference across capacitor 1?

http://img45.imageshack.us/img45/9895/fig2528iq2.gif [Broken]

2. Relevant equations

series capacitance 1/Ctotal= 1/C1 + 1/C2 + 1/C3

parallel capacitance Ctotal = C1 + C2 + C3

q= CV

3. The attempt at a solution

well, I've tried many different ways- but I guess my biggest problem comes from not knowing whihc of the capacitors to add up first- meaning do I add together C1 and C2 first, or C2 and C3, or C1 and C3? If you add them up starting with those different pairs, the total capacitance comes to different values each time, so that could be a problem. After, that I might be abel to work it backwards to figure out the rest of the problem....I just can't get it off the ground....thanks

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# Homework Help: How to find total capacitance

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