Calculate the resistance of the conductor.

Calculate the drift speed v of the electrons in the conductor in cm s^–1. State your answer to an appropriate number of significant figures.

1.7 × 10^–8 × $\frac{{0.10}}{{{{(0.02 \times {{10}^{ - 2}})}^2}}}$

0.043 «Ω»

[2 marks]

v «= $\frac{I}{{neA}}$» = $\frac{2}{{8.5 \times {{10}^{22}} \times 1.60 \times {{10}^{ - 19}} \times {{0.02}^2}}}$

0.368 «cms^–1»

0.37 «cms^–1»

Award [2 max] if answer is not expressed to 2 sf.

[3 marks]