Physics (AS & A Level) · Feb / March 2022 · Paper 12 · Question 32

A piece of wire has a length of 0.80 m and a diameter of 5.0 × 10⁻⁴ m. The I–V characteristic of the wire is shown. What is the resistivity of the metal from which the wire is made?

1. A1.2 × 10⁻⁷ Ω m
2. B1.6 × 10⁻⁷ Ω m
3. C4.9 × 10⁻⁷ Ω m
4. D2.0 × 10⁻⁶ Ω m

As printed in the paper