A conveyor pulls a metal strip through a magnetic field. The strip first moves across the field lines. Its speed is then doubled, with the field and the strip unchanged. Finally, it moves parallel to the field lines.
Explain how the movement of the strip affects the potential difference induced across it as it moves across the field lines at each speed, and when it moves parallel to the field lines.
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.