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Kirchhoff loop problem

  1. Oct 21, 2009 #1
    1. The problem statement, all variables and given/known data
    We are to find I1, I2 and I3 in the diagram.

    2. Relevant equations
    These are the three equations I got. I need to know if they're correct.


    3. The attempt at a solution
    Values I got on solving:

    (Note: r=1 ohm)

    kindly tell me if this is correct!! :)

    Attached Files:

  2. jcsd
  3. Oct 21, 2009 #2
    Sign convention followed:

    In the direction of the current=positive
    Negative to positive plate=negative
  4. Oct 21, 2009 #3
    The solution is correct. I almost never use the voltage/loop rule.

    If you give the node at the top an unknown potential V, and the node at the bottom a potential
    0, you only have to use the current rule once to get a single equation for V.
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