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CBSE Class 10 Answered

what is a commutator? what are its uses properties?
Asked by pooja pujar | 30 Jul, 2011, 12:00: AM
answered-by-expert Expert Answer

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, picks off power similarly. As a switch, it has exceptionally long life, considering the number of circuit makes and breaks that occur in normal operation.

 

Answered by | 30 Jul, 2011, 07:24: PM
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