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Equivalent Capacitance of a set of Capacitors

  1. Sep 23, 2012 #1
    1. The problem statement, all variables and given/known data
    GqVY9.jpg


    2. Relevant equations

    1/Ceq= 1/C1 + 1/C2

    3. The attempt at a solution

    1/C13eq= 1/3C1 + 1/5C3 = 8C/3 = 2.67C

    1/C12eq= (3C x C)/(3C + C) = 0.75C

    Ceqtotal = 2.67C + 0.75C = 3.42C

    I think the series circuit is throwing me off?
     
  2. jcsd
  3. Sep 23, 2012 #2
    Consider the combination of C2 and C3 as a single capacitor in series with C1.
     
  4. Sep 24, 2012 #3

    CWatters

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    That's the equation for caps in series. What about the equation for caps in parallel?
     
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