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Homework Help: Find the capacitance of C3 and its charge

  1. Mar 27, 2017 #1
    1. The problem statement, all variables and given/known data
    From the textbook:

    2. Relevant equations / 3. The attempt at a solution
    My attempt at the solution: looking to fix my issues and help correcting my work.

  2. jcsd
  3. Mar 27, 2017 #2


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    You have used incorrect formula for voltage across capacitor.

    You need to write the voltage across capacitor in terms of charge and capacitance.
  4. Mar 27, 2017 #3
    Should be V=Q/C?
  5. Mar 27, 2017 #4


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  6. Mar 27, 2017 #5
    So, would this be accurate?

  7. Mar 27, 2017 #6


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    I think that's right for (a). Much better than before. :approve:

    For (b) you don't actually need the answer to (a). You might be able to say it off back of head. :oldwink:

    After which calculation of (a) is a bit simpler.

    Here Matrices and determiants is how you can make pages like yours look better.
    Last edited: Mar 27, 2017
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