Circuits capacitors, voltage and charge problem.

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SUMMARY

The discussion focuses on calculating the charge on capacitors in a circuit with given capacitances: C1 = C2 = C3 = 54.2 microfarads and C4 = 68.1 microfarads. The charge on capacitor C2 is specified as Q2 = 62.4 microfarads. To determine the charge on the other capacitors, participants emphasize the need to apply the formulas for charge (charge = voltage * capacitance) and the rules for series and parallel equivalent capacitance. The conversation highlights the importance of knowing the voltage across capacitors to solve for unknown charges.

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zyphriss2
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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.
 

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Hi zyphriss2! :wink:

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

how would you find that? :smile:
 

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