1. The problem statement, all variables and given/known data 2. For the following circuit, find RT, IT, I3, V1, V3, V5. http://img520.imageshack.us/my.php?image=m17aje5.gif 2. Relevant equations V = IR, ohms law, Kirchoff's laws 3. The attempt at a solution RT = R1 + R2 + R3 + R4 + R5 + R5 RT = 20 + 22 + 30 + 27 + 40 + 20 RT = 159 ohms IT = V/RT IT = 120 V / 159 ohms IT = 0.75 amps I have the total resistance and total current.. I'm not sure exactly how to go about finding the current at I3 though. Any help would be appreciated. voltage, minus the voltage drop of the 2 resistors before it, / resistance of the 2 resistors before it? I'm not sure.