A wire carrying a current is held between the poles of a magnet that rests on a balance. The wire is pushed upwards. What happens to the magnet?
Nothing, because the force acts only on the wire carrying the current
It is pushed downwards with the same size of force as the wire
It is pushed upwards with the same size of force as the wire
It is pushed downwards with a much smaller force than the wire
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.