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What's the relationship between UA, Ub and Uc?

  1. Apr 26, 2012 #1
    1. The problem statement, all variables and given/known data
    As showing in the picture, I need to get the relationship of UA, Ub and Uc.
    I am a mathematical student and weakly in physics, so I come here to get some help.


    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Apr 27, 2012 #2
    I think what you are looking for are Kirschoff's laws
     
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