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Power delivered by battery in simple RL circuit

  1. Apr 25, 2016 #1
    1. The problem statement, all variables and given/known data
    For a simple series LR circuit, find the energy delivered to the circuit by the battery.

    2. Relevant equations
    I = (V/R)*(1-e-Rt/L)

    3. The attempt at a solution
    Isn't ∫ Pdt = ∫ IVdt = ∫ (V2/R)*(1-e-Rt/L)dt = (V2/R)(t + (L/R)e-Rt/L) ???

    The book provides the answer, via a sample problem, of: Capture.JPG

    What am I missing?
  2. jcsd
  3. Apr 25, 2016 #2
    Oops - sorry - disregard the original post.
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