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First Order Circuits

  1. Jul 3, 2008 #1
    1. The problem statement, all variables and given/known data

    [​IMG]

    Ok, lets say I have a first order circuit with i_s = Acos(wt+phase) (like in the pic).
    I'm having problem with the private solution, lets say I pick my private solution like this:
    i_p = Bcos(wt + phase) = Ccos(wt) + Dsin(wt) (right?)
    After I place this i_p in the equation I come up with this:
    f[C,D]*cos(wt) + g[C,D]*sin(wt) = Acos(wt+phase) (right?)
    Can I say
    f[C,D]*cos(wt) + g[C,D]*sin(wt) = Acos(wt)?
    I mean, How do I come up with C and D?

    10x in advance.

    2. Relevant equations



    3. The attempt at a solution
    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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