[n] - switch for reversing the direction of an electric current
Found on http://www.webdictionary.co.uk/definition.php?query=commutator
Com'mu·ta`tor noun (Electricity) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direc...
Found on http://www.encyclo.co.uk/webster/C/119
noun switch for reversing the direction of an electric current
Found on http://wordnetweb.princeton.edu/perl/webwn?s=commutator
• (n.) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction.
Found on http://thinkexist.com/dictionary/meaning/commutator/
(from the article `electric generator`) ...or armature, windings are placed in slots in the cylindrical iron rotor. A simplified machine with only one rotor coil is shown in Figure 6. The ...
Found on http://www.britannica.com/eb/a-z/c/120
[electric] A commutator is a rotary electrical switch in certain types of electric motors or electrical generators that periodically reverses the current direction between the rotor and the external circuit. In a motor, it applies power to the best location on the rotor, and in a generator, ...
Found on http://en.wikipedia.org/wiki/Commutator_(electric)
In mathematics, the commutator gives an indication of the extent to which a certain binary operation fails to be commutative. There are different definitions used in group theory and ring theory. ==Group theory== The commutator of two elements, g and h, of a group G, is the element N.B. The above d...
Found on http://en.wikipedia.org/wiki/Commutator
mechanical device in a brushed DC motor that passes current from the brushes to the windings.
Found on http://www.empiremagnetics.com/glossary/glossary.htm#A
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