Physics (AS & A Level) · May / June 2020 · Paper 12 · Question 35

A conductor consists of three wires connected in series. The wires are all made of the same metal but have different cross-sectional areas. There is a current I in the conductor. Point Y on the conductor is at zero potential. Which graph best shows the variation of potential V with distance along the conductor?

1. AGraph A
2. BGraph B
3. CGraph C
4. DGraph D

As printed in the paper