At one position in its rotation, the output of a model generator reaches a positive peak while its coil turns clockwise. The coil is then turned anticlockwise at a higher speed, with the coil and magnetic field unchanged.
Which peak is produced when the coil next reaches this position?
A negative peak with a smaller magnitude.
A positive peak with a smaller magnitude.
A negative peak with a greater magnitude.
A positive peak with a greater magnitude.
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.