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Capacitor charge time on DC RLC circuit

  1. Sep 30, 2012 #1
    1. The problem statement, all variables and given/known data

    Inductor, resistor and a capacitor is connected to a DC source in series.
    DC source is 220 V
    Capacitance is 10F
    Inductance 5H
    Resistor 22 ohm
    Vc(0) = 50V

    Question is asking for the charge time of the capacitor, when it gets charged fully and then it starts to act like open circuit (If I'm not mistaken it must be act like short until gets fully charged and then acts like open circuit)

    2. Relevant equations



    3. The attempt at a solution

    I wrote down the KVL and equation. And then replaced the VL with L.dI/dt and I=C.dVc/dt
    Finally I ended up with a dif. equation on Vc.

    However, I couldn't proceed any further.
     
  2. jcsd
  3. Sep 30, 2012 #2

    rude man

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    Homework Helper
    Gold Member



    Why not? What was your equation?
     
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