source voltage =120V
voltage across 15 ohm resistor = Va
there is a dependent source 2Va
and a 30 ohm resistor.
I tried applying KVL i.e 120-30I+2Va-Va=0
and got I=2.66A
whereas my teacher told me that the answer is 8A. how is it so? Is it some basic knowledge that I have overlooked?
Also as a side note, I have difficulty knowing which theorem to apply in which circuit. I do practise problems but even then I have difficulties especially in chapters like 2-port network. Are there any tips regarding that?