What is the difference between voltage and emf ?

3 Answers   DRDO,

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A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

0 Answers   Caterpillar,

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where do we connect tap of tap changer, to H.V. side or L.V.side? and why?

5 Answers   Vedanta,

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what is mean by potential and potential free contacts

2 Answers  

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Why (In India) we preferably go for +-30 deg connection of transformer? what are the advantages in this connection?

2 Answers  

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how current rating of l.t cable is find

2 Answers   GAIL,

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what is neutral grounding resistor?

3 Answers  

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How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

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Is there such a frequency as 440v 50Hz?

1 Answers  

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what is voltage

7 Answers   TCS,

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why we use to transmit the power in three phases intead of single phase ?

4 Answers  

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why we generate 11kv power supply in generating station?

1 Answers   DBG, NTPC,

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