CAPE Physics Unit 2 · 2007 · Paper 1 · Question Q11

A wire, 1.00\text{ m} long and of uniform cross-sectional area 2.00\text{ mm}^2, has a resistance of 0.5\,\Omega. What is the resistivity of the wire material?

1. (A)1.0 \times 10^{-3}\,\Omega\text{ m}
2. (B)1.0 \times 10^{-6}\,\Omega\text{ m}
3. (C)2.0 \times 10^{-6}\,\Omega\text{ m}
4. (D)3.1 \times 10^{-6}\,\Omega\text{ m}