Commutator Definition

Commutator Sentence Examples

• Expanding an iterated commutator produces a complicated and long expression.

• The armature carries on its shaft a commutator made of silver slips, and the current is fed into the armature by means of brushes of silver wire.

• In this new form of bobbin, the armature consisted of a ring of iron wire wound over with an endless coil of wire and connected to a commutator consisting of copper bars insulated from one another.

• The effect is most easily shown by connecting a voltaic cell to a thermopile for a short interval, then quickly (by means of a suitable key, such as a Pohl commutator with the cross connectors removed) disconnecting the pile from the cell and connecting it to a galvanometer, which will indicate a current in the reverse direction through the pile, and approximately proportional to the original current in intensity, provided that the other conditions of the experiment are constant.

• A group whose commutator factor group is finite can only have finite nilpotent quotient groups.