An alternator is used to supply a heater. The rotating coil is connected to the heater by slip rings. During one half-turn, the induced current through the heater flows from terminal P to terminal Q.
State the direction of the induced current through the heater during the next half-turn.
96 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.