how we can varying the speed of dc motor ?

Answer Posted / jude finney

speed of the motor can be varied in two methods
1)by armature voltage control method
2)by field voltage control method

Is This Answer Correct ?    26 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to decide and select the different earthing wire size for the different types of earthing

1816


please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

1641


What is a dc motor?

671


list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

1562


What is the main cause of magnetism?

1593






Describe the test procedure to determine the vector group

1603


How to calculate Ith (I thermal) for curent transformer

1573


What kind of maintenance is conducted for Transformer

1745


what is the Transformer Impedence?How can calculate?

1462


HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory

1430


A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3

1587


What is the control action?

640


how to handle 2500 kva transformar

1140


HOW TO WRITE A QUENTION ANSWER? I MEAN SHORT OR LENGHTHY ? OR FROM THE BOOK AS BOOK..... SOME TIME WE GIVE A ANS FROM THE BOOK AS LIKE BOOK ND WE GET MINIMUM 60% MARKS OR MORE THEN....... THEN HOW TO FILL THE Q-PAPER?

1528


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

1845