So this problem has me getting ticked, as I've done it a million different ways and followed similar tutorials to the letter and I'm not getting the correct answers.
I've assigned the current flow as clockwise for all 3. Here are my equations:
I1: -10 + 220I1 + 390(I1-I2) = 0
I2: 270I2 + 470(I2-I3) + 390(I1-I2) = 0
I3: 560I3 + 470(I2-I3) = 0
These reduce to the following matrices:
-A-
610 -390 0
390 350 -470
0 470 90
and
-B-
10
0
0
Solving (-A-)^-1(-B-)gives me completely incorrect answers (using nodal analysis + LTspice simulation, the correct currents are I1 = -22.65 mA, I2 = -9.6 mA, and I3 = 4.39 mA).
What am I missing here? Thank you!
I've assigned the current flow as clockwise for all 3. Here are my equations:
I1: -10 + 220I1 + 390(I1-I2) = 0
I2: 270I2 + 470(I2-I3) + 390(I1-I2) = 0
I3: 560I3 + 470(I2-I3) = 0
These reduce to the following matrices:
-A-
610 -390 0
390 350 -470
0 470 90
and
-B-
10
0
0
Solving (-A-)^-1(-B-)gives me completely incorrect answers (using nodal analysis + LTspice simulation, the correct currents are I1 = -22.65 mA, I2 = -9.6 mA, and I3 = 4.39 mA).
What am I missing here? Thank you!
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