1. The problem statement, all variables and given/known data Can a supernode have a resistor or any other element in it? 3. The attempt at a solution I'm guessing it can because all voltage sources have internal resistance of some sort, and this can be represented by a resistor in series with a voltage source between two unknown node voltages, hence making it a supernode. I unfortunately couldn't find any examples of a supernode being formed with a resistor in it, so I was a bit suspicious.