A student holds a straight wire between the north pole and the south pole of a strong magnet. The ends of the wire are connected to a sensitive voltmeter.
The student moves the wire downwards between the poles. The voltmeter shows a reading. Give the name of the effect that produces this reading.
The student then holds the wire still between the poles of the magnet. Give the reading on the voltmeter.
Give one change the student could make to increase the reading on the voltmeter.
40 exam-style questions on AQA GCSE Physics 7.3 Induced potential, transformers and the National Grid (HT only), covering 7.3.1 Induced potential (HT only), 7.3.2 Uses of the generator effect (HT only), 7.3.3 Microphones (HT only), and 7.3.4 Transformers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.