Answer / naveen gupta

The illumination of Tube is due to flow of electrons between its terminals, so as soon as you switch off supply electrons at one terminal needs a little time to be back to their original energy state. Thats why it glows for some time

What happen if we apply square wave or traiangular waveform voltage to the transformer primary winding instead of sinusoidal wave?

0 Answers  

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For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 Answers  

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What is ac and dc drive.

1 Answers  

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what is the star delta connetion and how can do it a three phase motor with control witing with picture

0 Answers   Aurobindo, SA Kent, Wipro,

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Why size of HT cable is less then LT cable inspite of the fact that voltage is higher in HT cable?

2 Answers   L&T,

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what is meant by transformer oil temparature

3 Answers   Vijaya Bank,

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What is switch disconnector fuse?

1 Answers  

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what are the changes made in induction motor so that it act as induction generator

4 Answers   APPSC,

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what is the difference between MCB and MCCB?

4 Answers  

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How earth resistance reduses by pouring water coal and salt?

4 Answers  

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What is order of the system?

0 Answers  

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why celing fan is running in anti clock wise and table fan is running in clock wised?

5 Answers  

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