1. The problem statement, all variables and given/known data Find the current flowing through the circuit. http://wildedge.zxq.net/IMG.jpg 2. Relevant equations Amps=Total Voltage / Total Resistance 3. The attempt at a solution (20 + 12 + 12 + 3) / (10 + 5 + 30 + 40 + 20 + 15)=0.39A I'm almost certain that this is wrong. I don't even know if the formula I used is actually valid. Any help you can provide would be greatly appreciated. On an unrelated note, has anyone seen a good explanation of the right-hand rule (for magnetic fields)? ***Sometimes, the image might not display. I don't know why. If that happens, right click the little icon that shows in its place and copy the image URL.