why dc supply is given to the field of alternator

9 Answers  

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how to calculate H.P of a moter from speed of a moter?

5 Answers  

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when we switch on the switch and load is not connected at home,is electricity wasted?

1 Answers  

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why they charge more bill for low power factor rather than high power factor

2 Answers  

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How much heat will a 2500 KVA transformer will generate ?

5 Answers  

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what is the wattage of 'zero watt' bulb?

16 Answers   PSEB,

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The basis on which voltage selection of motor is done i.e. either HT or LT.

1 Answers   DAE,

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What is the need of ISOLATION Transformer?

1 Answers  

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Why not connect relay Y phase for over current and earth fault

1 Answers   HB,

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what is skin effect and why is it absent in DC systems

4 Answers  

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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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in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).

2 Answers  

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