Physics (AS & A Level) · Oct / Nov 2023 · Paper 11 · Question 33

A piece of conducting putty is in the shape of a cylinder of length 60 mm and diameter 20 mm. The resistance between the ends of the cylinder is 20 Ω. What is the resistivity of the putty?

1. A0.033 Ω m
2. B0.10 Ω m
3. C0.42 Ω m
4. D5.2 Ω m

As printed in the paper