1. The problem statement, all variables and given/known data Given the drawing, calculate the current going through the 2Ω Resistor and then calculate the difference in electric potential from point a to b. 2. Relevant equations V = IR juction rule: ƩI = 0 = Iin - Iout ƩV = 0 3. The attempt at a solution Well, I attempted to draw all the currents. The Green is from the 3Volts on the bottom, the orange is from the 12V on the top. I would think that I could use a sum of the different V=IR equations (12/4 + 3/2 + 3/2), but 6 is not the answer. I'm pretty lost clearly.