A student pushes a magnet into a coil, holds it still, and then pulls it out. The ammeter deflects left during the first movement.
Which sequence describes the readings during the hold and the withdrawal?
Left while held; right during withdrawal.
Zero while held; right during withdrawal.
Zero while held; left during withdrawal.
Right while held; left during withdrawal.
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.