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Homework Help: Kirchoff's Voltage Law

  1. Aug 30, 2010 #1
    What is the voltage across vc(0) in the diagram below?

    The solution says its 10V but I don't know how they got that.

    Through KVL, I got 0V.

    Since all the current flows through the left most circuit, iA = 10/1000 = .01A

    3k and 1k(right) resistors have no current.

    -10 + 1000iA + vc = 0

    vc = 0?

    Am I doing something wrong here?

    Edit: After applying nodal analysis, I got 10V, so I must be applying KVL wrong then?
     

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    Last edited: Aug 30, 2010
  2. jcsd
  3. Aug 30, 2010 #2
    You are right, you can see why in another way, there are no corrents in vc and there is a short circuit beetween the nodes near vc, i.e. voltage=0, so vc must be zero
     
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