If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

0 Answers  

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What are the testing to be done before the installation of 1000 KVA Transformer?

3 Answers   L&T,

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1KVA transformer of different frequencies of 50hz,100hz,500hz&1000hz. which one of these transformer has big size? Give reason

16 Answers   Ecil, Engineers India, MahaDiscom,

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HOW TO DRAW THE VECTOR DIAGRAMS OF A Dyn 11,YdN 1 transformers?

0 Answers  

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what is the relation between currebt & voltage.

8 Answers  

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What is the difference between Earth and Neutral?

2 Answers  

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What is harmonics. How does it get generated and means to arrest harmonics

8 Answers   Airtel,

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Lt motor sfu flashing reasons?

0 Answers   NDFL,

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We say that if voltage in a power system is increased,for a constant power the current will decrease (by P=VI). isn't this in disagreement with the ohms law(I propotional V;resistant const.).Since the resistance of transmission lines remains constant,shouldn't inc in voltage cause inc in current across the transmission line? I have read many articles across the net but still couldn't this figure this out. :( Guyz plz assist me with dis..:)..

4 Answers  

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Do you know how to connect a motor of different H.Ps?

5 Answers  

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What are the three constants associated with a steady state error?

0 Answers  

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what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 Answers  

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