Circuits capacitors, voltage and charge problem.

[zyphriss2]

A. Suppose in the figure that C1 = C2 = C3 = 54.2 microfarads and C4 = 68.1 microfarads.

If the charge on C2 is Q2 = 62.4 microfarads determine the charge on each of the other capacitors.


B. charge=voltage*capacitance
series equivalent capacitance=1/c1 + 1/c2 + 1/c3 + ...
Parallel equivalent capacitance= c1+c2+c3


I just tried taking the voltage across the C2 then plugging it into find the charge at c4 which i thought was 49.6 microfarads...I knew it was a long shot but its my last problem and I have no clue where to start.

 

[tiny-tim]

Hi zyphriss2!

To find the charge across C4, you obviosly need to know the voltage across C4 …

how would you find that?