A small generator contains a bar magnet that rotates about its centre inside a stationary coil. The ends of the coil are connected to a complete external circuit.
Explain how this arrangement produces a current that repeatedly changes direction.
92 exam-style questions on Edexcel GCSE Physics 13.1 Inducing a current, covering 13.1.1 Producing an electric current by induction, 13.1.2 Factors affecting the induced potential difference, 13.1.3 Alternators and dynamos, and 13.1.4 Microphones and loudspeakers. Each one has a worked solution and a mark scheme showing where the marks go.