/diy/ - Do It Yourself

Alright, I had a debate with my brother over whether resistance heating had more to do with resistance or current. After that I looked into it more and now I think I understand it, but please correct me if I'm wrong. So in picrel there would be 1 amp moving through the circuit. Voltage and total resistance both decrease proportionally as one moves further up the circuit. In this case, the voltage after the first wire drops to 11, then 1 after the load, and to zero after the second wire. Since the load has 10 volts applied to it, that means it is consuming 10x1 amp to make 10 watts. Each wire is consuming 1 volt x 1 amp to make 1 watt each. Therefore the load is experiencing 10 watts of heating and each wire one.
TLDR: Heat distribution is determined by voltage drop and current, and voltage drop is determined by resistance. Am I right or just retarded?