- #1
rms5643
- 20
- 0
Homework Statement
Find Io in the network in the figure below using linearity and the assumption that Io = 1 mA.
Figure:http://i.imgur.com/Xtu0VmG.jpg
Homework Equations
KCL, KVL, basic analysis techniques.
The Attempt at a Solution
The following values I have calculated correctly:
VR1=9V
VR2=61V
VR3=70V
I1=1mA
I2=2mA
VR4=138V
VS=208v
I3=??
IS=??
IoActual=??
So, my trouble lies in finding I3, as once I find I3, I can easily find IS using KCL, though, the current source is doing something to the voltage drop across I3 that I'm not understanding.
How I tried to solve for I3 was the same way I solved for VS. Since the voltage drop across the source is 208v, then I assumed that the voltage drop across the two resistors on the left summed to 208v as well.
So, using Ohms Law: V/R=I, 208v/(42000Ω+26000Ω)=3mA, which is incorrect. Where did I go wrong?
Thank you