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CAIE IGCSE Physics Simple Alternating-Current Generator

Practise explaining how a rotating coil generates alternating current and identifying slip rings and carbon brushes that connect it to an external circuit.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • explain that a rotating coil cuts magnetic field lines and induces an alternating e.m.f.
  • identify slip rings and carbon brushes and state that they maintain contact as the coil rotates
  • convert revolutions per minute to revolutions per second to obtain the generator frequency

4.5.2.1—Simple form of a.c. generator question 1

[Maximum number: 2]

Fig. 10.1 shows a simple alternating current generator.

Fig. 10.1

Fig. 10.1

State the name of the components labelled P and Q and state their purpose.

Name:
Purpose:

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