Is asking for the voltage of a point in a wire (before/after a resister) the same as asking for the voltage across that resister? I understand voltage is relative.. Here is the circuit: I can't wrap my head around what V1 represents. Other questions in this assignment specifically ask for the voltage across some element of the circuit. I just don't know how to interpret the notation of V1 as it is drawn in this circuit as I've never encountered it before. Any perspective on this would be appreciated.