Almost forgot to mention: This is a DC Circuit! In the diagram above, find the potential difference across the 3-ohm resistor. a) 1.3 V b) 3.0 V c) 4.0 V d) 5.0 V e) 6.0 V Relevant equations: So far, I used: I = V/R to find current from the battery. Then there's E = IR. (Sorry, LaTeX doesn't like me.) The attempt at a solution: Using the first equation, I found that the current measures three Amperes. I also tried using the second formula where I = 3 and R = 3, but that gave me 9 Volts, which isn't an answer. Any help would be much appreciated!