- #1
wany
- 72
- 0
Homework Statement
So I need to find the total voltage across the current source.
Looking at the attachment, I took
front square: B_______C
......|.....|
......|.....|
......A_______D
back square: E_______H
......|.....|
......|.....|
......F_______G
Homework Equations
node analysis
The Attempt at a Solution
So I used node analysis at each corner to get a set of equations:
-g6Vc-g1Ve-g3Vg+(g3+g1+g6)Vh=0.001
-g5Vd-g4Vf+(g5+g4+g3)Vg-g3Vh=0
-g8Va-g2Ve+(g8+g4+g2)Vf-g4Vg=0
-g7Vb+(g1+g7+g2)Ve-g2Vf-g1Vh=0
-g12Va+(g12+g9+g7Vb)-g9Vc-g7Ve=0
-g9Vb+(g9+g10+g6)Vc-g10Ve-g6Vh=0
-g11Va-g10Vc+(g5+g10+g11)Vd-g5Vg=0
(-g12-g11-g8)Va+g12Vb+g11Vd+g8Vf=0.001
where g(x) is the conductance=1/R(x)
So I notice this as 8 equations with 8 unknowns. However, when I plug this into matlab,
I get (Warning: Matrix is close to singular or badly scaled.)
Is there a problem with my equations?
Any help would be appreciated.