what is the purpose of commutator in DC motor?

Answer Posted / madhupriya

The purpose of commutator in dc motor is that it provides continuous unidirectional torque for the rotor to rotate

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?

746


For group 1 , 2 whather i have to prepare my technical or general studies etc? and im graduate in ee engg. for wht posts im eligible for? please tell me!

1738


hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

1628


difference between Ac and Dc mcb ????

1137


Can you explain about TEE protection scheme?

1761






What is evaporator & condencer & compressor

1738


differnce between single acting and double acting solenoid valves

1410


What is reactive power and where it is used.

1204


How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

1566


what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????

1443


In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

1654


How can we find out LT UG cable fault (size,from-4*25mm sqr to 4*300mm sqr)? How mani types UG cable faults?

2578


Why is a synchronous motor always star connected??

2120


Define the term Capacitance and Inductance?

662


Explain the process of commutation in a dc machine.

609