# Energy stored within a circuit

1. Apr 9, 2012

### wondermoose

1. The problem statement, all variables and given/known data
In the figure (link below), C1 = 20 $\mu$F, C2 = 24 $\mu$F, C3 = 16 $\mu$F, C4 = 20 $\mu$F, C5 = 22 $\mu$F, and V = 20 V. How much energy is stored by C2?

Here's the figure:

2. Relevant equations
Q = C$\Delta$V
Ucap = (1/2)C$\Delta$V2
Ceq = C1 + C2 + C3 + ....

3. The attempt at a solution
This was a last problem on a test that I got destroyed on, and we're getting credit for corrections but I'm still clueless to where I start. Any help is appreciated!

2. Apr 10, 2012

### ehild

Some capacitors are connected in parallel, others in series. Determine the resultant of the capacitors C1, C2, C3, C4.

ehild