maybe the last circuit has too many elements for the concept I'm confused about. Here's another example:
http://img111.imageshack.us/img111/7295/circuit3qm0.jpg
In this example, we'd first set the current i1 equal to the current exiting which is i2 and i3 at node a.
After doing a...
Thanks for your help mheslep. I'm still a bit confused though.
So if I choose to use a clockwise loop for the left loop first, that'd make the middle resistor to have a plus polarity on top and negative polarity on the bottom.
Next, if I choose to draw a clockwise loop for the right loop...
I'm confused about how to assign the voltage polarities on circuit elements. Below is an example about what I'm confused about:
http://img520.imageshack.us/img520/5075/circuitly2.jpg
So applying the Kirchoff's Law to the left loop, I get:
-5 + 54000i1 - 1V + 186000i1 = 0
So far so...