Equivalent Capacitance

1. The problem statement, all variables and given/known data
Reduce the circuit below into a single equivalent capacitor at terminals a,b. Assume all initial voltages at t = 0 are zero.

2. Relevant equations

3. The attempt at a solution
Okay, this is the circuit I had in mind when I made this thread earlier
http://ift.tt/1lndL5g

My first thought was to take all the capacitors that to me look to be in parallel and combine them. I said that they are in parallel because they share at least 2 nodes on both sides of the components.

Then, I said the capacitors on the left side are in series. There is a lot of doubt in my decision here. I say that because they all 3 share the same node on only one side of their component, so I called them in series.

Then, after that the rest are clearly in series so I combined them.

Also, I wonder why it matters what terminals I choose to find the equivalent capacitance between, and what would happen if I chose different terminals?

Attached Images
File Type: png 6.5.png (47.1 KB)
File Type: jpg 6.5 attempt 1.jpg (31.2 KB)
Attached Files
File Type: pdf 6.5 attempt 1.pdf (144.6 KB)

http://ift.tt/1lndL5k

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