Hi, I have made a thread about electricity a couple of days ago, which Jimmy kindly helped me out with, but I am again, stuck on the last question (most dificult question). Here is the diagram that I have scanned: http://gallery.cybertarp.com/albums/userpics/12541/electricity2.gif Basically, I need to find voltage drop across the resistor (V), current flowing through the resistor (I), the resistance constant (R) mainly using this equation: V = IR I need to find: R1, R2, R3, R4, Rt (total), I1, I2, I3, I4, It (total), V1, V2, V3, V4 and Vt (total). Well, when I tried to solve this question, I thought because I1 = 8.5A and it is in series with the power source, It = 8.5A also. Then I got stuck. I though I4 is also equal to 8.5A, but apparently, the answer says it's not. It's quite surprising to see that V2 and V3 have different values. I thought since they are in parallel relationship, they must be the same. Here are the answers for your convinience: It = 8.5A Rt = 4.47ohms Vt = 38V I1 = 8.5A R1 = 2ohms V1 = 17V I2 = 3A R2 = 7ohms V2 = 21V I3 = 5.5A R3 = 2.32ohms V3 = 12.75V I4 = 5.5A R4 = 1.5ohms V4 = 8.25V Thank you very much for your help!