Physics · IGCSE · Cambridge · Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) · Specification point · 4.5.5 · Electricity and magnetism · Electromagnetic effects
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4.5.5 The d.c. motor
| Core | Supplement |
|---|---|
1 Know that a current-carrying coil in a magnetic field may experience a turning effect and that the turning effect is increased by increasing: (a) the number of turns on the coil (b) the current (c) the strength of the magnetic field | 2 Describe the operation of an electric motor, including the action of a split-ring commutator and brushes |