Capacitors - problem w/ diagram

AI Thread Summary
The discussion revolves around calculating the equivalent capacitance between points a and b for a group of capacitors with specified values. The initial poster, Val, seeks assistance with a diagram that includes capacitors C1, C2, and C3. A user named Zz points out an ambiguity in the diagram, suggesting that a wire appears to short the capacitor leads, which may not be the intended setup. The solution involves calculating the capacitance of capacitors in series and parallel, with guidance provided on how to approach the problem. The conversation emphasizes the importance of clarity in diagrams for accurate problem-solving.
njvc3
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Hello, I was hoping to get some help with this problem..

Find the equivalent capitance between points a and b for
the group of capacitors connected as shown in the following
figure if C1=5.00µF, C2=10.00µF, and C3=2.00µF.

I appreciate the assistance. :smile:
~Val

[diagram attached]
 

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Zz.
 
The lower portion of your diagram is ambiguous. It shows a wire shorting the capacitor leads, but I doubt that is what the problem intended. Show us how you think the problem should be done. What is the equivalent capacitance of capacitors in series, or capacitors in parallel?

https://www.physicsforums.com/showthread.php?t=4825
 
First you calculate the capacitance of the series connection of C_1 and C_2. Call it C_{12}.
The capacitance of the upper portion of the circuit is given by the parallel connection of C_{12}, C_3 and C_{12}.
The two C_2 capacitances of the lower part are short-circuited, so the overall circuit capacitance is the value of the upper part.
 
I merged the duplicate thread you created in EE with this one. Please do not double post!
 
Thanks SGT

Thank you SGT for giving me useful help to the problem..



Btw, it's necessary to get a wider array of people that
may be of some assistance -- THUS the need to post
in different rooms... alright
 

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