A vertical wire passes through a horizontal card. The current in the wire is directed upwards. Plotting compasses on the card point anticlockwise around the wire when seen from above. The current in the wire is then reversed. Which describes the compasses now?
Pointing clockwise around the wire, seen from above
Pointing anticlockwise around the wire, seen from above
Pointing directly away from the wire in every direction
Pointing directly towards the wire from every direction
39 exam-style questions on AQA GCSE Physics 7.2 The motor effect, covering 7.2.1 Electromagnetism, 7.2.2 Fleming's left-hand rule (HT only), 7.2.3 Electric motors (HT only), and 7.2.4 Loudspeakers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.