what is active power and rective power and power factor

1 Answers  

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How can you justify a fully carged battery by physical checkup ?

12 Answers   Indian Military Services,

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when an induction motor runs on load.at that time if we reduce the supply voltage the current increases.But when it runs without load,if we reduce the supply voltage the current also reduced.why?.i checked it practically also.

1 Answers   Birla,

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How to find the maximum load that can supply by a particular(say 315kva) KVA rated transformer?

2 Answers   ME,

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I have a one P.F meter in my factory showing 2 phase leading and one phase lagging then what is my actual P.F.

1 Answers  

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what is the affect of earth's magnetic field on the frequency used in aircraft???

0 Answers  

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why inductivedrop in dc motor neglected

2 Answers  

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why exciter frequency 150 Hz ?

1 Answers   Siemens,

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What is erection of electrical system?

1 Answers  

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What is PCCB?

3 Answers   ICEL, Schneider,

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when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

0 Answers  

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when the rheostat kept in minimum to maximum position in motors what will happen?

7 Answers  

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