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Equipartition theorem

  1. Nov 3, 2009 #1
    1. The problem statement, all variables and given/known data
    An electrical circuit is at temperature T and contains a capacitor with capacitance C = Q/U. The energy to charge a capacitor is given by Ec = 1/2C . Q2, the charge Q plays the role of a ‘generalized position’. Using the equipartition-theorem, determine the average voltage fluctuations Urms = (<U2>)1/2 across the capacitor.

    2. Relevant equations
    above



    3. The attempt at a solution
    not really sure where to start, the average voltage fluctuations i think is the drift velocity of the electrons through the conductor? but other than that im not really sure what the question is asking. can someone give me a hint to get me started?
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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