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Homework Help: Capacitances and Potential Difference.

  1. Jun 11, 2008 #1
    1. The problem statement, all variables and given/known data
    I am given a circuit wherein there is a capacitor C1 followed by a battery of PD E1 followed by a capacitor C2 followed by a battery of PD E2 connected back to C1. Find PD across C1 (v1) and C2 (v2)

    | _ E2_|

    C1 = = C2

    2. Relevant equations
    Kirchoffs loop equation

    3. The attempt at a solution
    Applying Kirchoff's law we have,
    E1 - V2 - E2 + V1 = 0
    E1 - E2 = V2 - V1
    Now what??
    Last edited: Jun 11, 2008
  2. jcsd
  3. Jun 11, 2008 #2
    You know that charge cannot flow between the capacitors, so the charges on them are equal.
  4. Jun 11, 2008 #3
    Charges cannot flow alright. But how do you know they are equal?
  5. Jun 12, 2008 #4
    I was extremely sleepy when doing this stuff. Obvious answers now that I've woken up. I wasn't even thinking. I don't even remember coming on here and making this thread. VERY SLEEPY. My mistake.
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