Hello everyone, I am understanding the concept of mesh analysis and super meshes. In the Practice problem below, I am presented with a dependent current source and it lies between mesh 2 and mesh 3. Therefore, a super mesh will be utilized. However, on my third equation circled in red, I keep getting the signs wrong. How do I get them right?
The direction of the net current as indicated by the current controlled current source is in the direction of i3. i2 has a direction opposite to i3 in the middle arm. Since the direction of the net current and the direction of i3 is same, we can say that i3-i2 is equal to 15i1(which is the net current).