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Homework Help: Capacitor AS an energy storing device help?

  1. Mar 1, 2009 #1
    Capacitor AS an energy storing device help!?

    1. The problem statement, all variables and given/known data
    An air-filled parallel-plate capacitor has plate area A and plate separation d. The capacitor is connected to a battery that creates a constant voltage V.

    Question:find the energy U0 stored in the capacitor.
    Express your answer in terms of A,d ,V , and epsilon_0.

    2. Relevant equations

    3. The attempt at a solution
    u = (1/2)epsilon_0E^2
    and a few others ><"
  2. jcsd
  3. Mar 1, 2009 #2
    Re: Capacitor AS an energy storing device help!?

    wow never mind i was being a little slow i think i got it thanks for whom ever read this
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