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Electric potential difference across capacitor and resistor

  1. Oct 9, 2012 #1
    1. The problem statement, all variables and given/known data

    In the circuit shown a resistor of 200k ohm is in series with a capacitor of 500uF and a 9v battery. Switch closed at t=0. What is the electric potential difference across the capacitor and the resistor at t=100?


    2. Relevant equations

    Q=cv
    Tau=rc
    Q=q(1-e^t/rc)

    3. The attempt at a solution
    Don't even know with that resistor behind the capacitor. I'm so confused.
     

    Attached Files:

    Last edited: Oct 9, 2012
  2. jcsd
  3. Oct 9, 2012 #2

    lewando

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    Gold Member

    T = 100 what units, years?
     
  4. Oct 9, 2012 #3
    Seconds
     
  5. Oct 9, 2012 #4

    lewando

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    Gold Member

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