A 7 meter long run of 16 gauge wire which consists of a 4 meter long piece of aluminum wire piggy-backed to a 3 meter long piece of copper wire. A potential difference of 100 Volt is maintained between the two ends of the wire with the copper end at the higher voltage.
A) Calculate the current in the copper segment?
B) Calculate the current in the aluminum segment?
C) Calculate the potential difference across the two ends of the copper.