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Zarathuztra
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Homework Statement
Use the node-voltage method to find i0 in the circuit in figure if v=37V.
http://imageshack.us/a/img222/64/figurep0421.jpg
Homework Equations
The Attempt at a Solution
The hint was to use a supernode, but I'm having trouble trying to make it and get it to work, I connected the top node and bottom node with the voltage source to create the supernode. Used KCL to get 3 equations for the 3 unknowns as follows.
node A: (1/5 + 1/2)Va + (-1/5)Vb = 0
node B: (-1/5)Va + (1/5 + 1 + 1/5)Vb + (-1)Vc = 0
node C: (-1)Vb + (1/30 + 1)Vc = 0
solving the matrix this creates gives me Va=Vb=Vc=0
This is definitely wrong, and I have been looking through the book (and internet) for an example and couldn't find any that was similar to this... Is my supernode location incorrect or am I making an error at a different part of the process? Thanks for help in advance.
http://imageshack.us/a/img705/8533/eeehomework04p3q.png
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