1An attachment, connected to the armature of a motor or generator, through which electrical connection is made and which ensures that the current flows as direct current.
- ‘One of the places you need them is in modern small motors which don't have a commutator.’
- ‘The brushes conduct electricity to the commutator.’
- ‘It may also increase efficiency of machines as there won't be frictional effects of brushes, commutators, etc, on the motor itself.’
- ‘You can see that the commutator is simply a pair of plates attached to the axle.’
- ‘He went on to build an electric motor in 1832 and invented the commutator, an integral part of most modern electric motors.’
- 1.1 A device for reversing the direction of flow of electric current.
- ‘Note how the commutator reverses the current each time the coil turns halfway.’
- ‘The commutator must switch current to the correct drive magnets in the correct direction at the correct time in order to produce desired rotor movement.’
We take a look at several popular, though confusing, punctuation marks.