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The d.c. motor

Core concepts and learning points for this section:

Syllabus Points

Core

4.5.5.1 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

Supplement

4.5.5.2 Describe the operation of an electric motor, including the action of a split-ring commutator and brushes