1. The problem statement, all variables and given/known data Given the diagram: http://img517.imageshack.us/img517/5995/p2809altbe2.gif [Broken] where R = 37 Ohms a) Find the current in the 37 Ohm resistor b) Find the potential difference between points A and B 2. Relevant equations DV = IR, Kirchhoff's rules 3. The attempt at a solution a) I = 25 V / 2 = 12.5 V (at the first (right) junction) , there for I thought I at the 37 Ohm resistor would be 12.5 V / 37 Ohms = 0.34, but it doesn't. b) I combined the middle resistor and the lower 5 Ohm resistor to get ((1/10)+(1/5))^-1 = 3.33 Ohms and made the V at "b" 12.5 V ... but I don't know where to go from there. Thank you so much for your time! -- I'm really stuck.