CAPE Physics Unit 2 · 2006 · Paper 2 · Question 4(a)(iii)

Questions on conduction of electric current through conductors and charged particle beams.

Figure 4 shows electrons moving through a cross section of a wire. Show that the current, I, through the wire is given by I = nevA.

This question uses a figure or table from the paper — you'll see it when you practise.