CAPE Physics Unit 2 · 2008 (T&T) · Paper 1 · Question Q13

Item 13 refers to the following diagram which shows a square with vertices P, Q, R, S. Two long wires at vertices Q and S carry the same current, I, perpendicular to the plane of the paper, in the directions indicated. Determine the direction of the resultant magnetic field at vertex R.

1. (A)1
2. (B)2
3. (C)3
4. (D)4

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