- #1

- 367

- 13

## Homework Statement

In attached image. Just curious as to how their nodal analysis is correct.

## Homework Equations

[/B]

##I_{in} = I_{out}##

## The Attempt at a Solution

Solution in image.

I am just not sure how they applied nodal analysis here to find that ##I_s = \frac{12}{12} + \frac{12}{6} + \frac{12-8}{4}##. If I'm not mistaken, they are just finding V/R, correct? But isn't the voltage in ALL the resistors dependent in some way on both the 12 V source attached and also the dependent voltage source? Why does it seem like they only included the dependent voltage only on the 4-ohm resistor? Is their solution correct?