Why back emf used for a dc motor? Highlight its significance.

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Which type of moter is used in trains, what is the ratting of supply used explain Working principal?

2 Answers  

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What is the difference between Earthing & grounding

4 Answers  

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what is the problem with single phase AC motors and how is it overcome?

2 Answers  

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minimum ohm for lighting minimum ohm for Earthing

3 Answers  

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what is the difference between the electrical and electronic choke?

1 Answers  

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how to select automotive wire by mathematical equation with given current, vlotage and resistance

0 Answers   Tyco,

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How to Calculate the current drain in the battery (1.4V) for the 2mins time period?

7 Answers  

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

0 Answers  

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how to check dc current,how to fix ammeter in dc line

5 Answers   Gold Fields,

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how generater works

4 Answers  

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wap to print prime number from 1 to 100 using c++

1 Answers  

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