why in India it is maintained for exactly 50HZ frequency, why it is not that 49Hz,why it is so?

2 Answers  

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One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness...explain

2 Answers  

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send me the upsc conventional papers of 2006

1 Answers   Juniper Networks, Siemens,

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c++ write a program to use a fuction call "max"which accepts an intger arrey of size5.as an arrument and return the larger and smallest of the arrey to main without changing. the original changing of the original position of the element of the arrey.

0 Answers  

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WHY HOLDING CONTACTOR OF MOTOR STARTER IS CALLED NO VOLT COIL.

3 Answers  

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how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

1 Answers   Havells,

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electricity board have asked me what size meter i need fitted in my garage, its a 415volt supply and i want to run six 20amp supplies tolifts and things plus ten florry lights , what kva meter do i need??

2 Answers   HCL,

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what will be happen if we apply D.C supply to the transformer

14 Answers   CCBPL,

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what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors

0 Answers   Lanco,

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what is the function of closing coil in air circuit breaker?

0 Answers   Fresher,

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What do you mean by class of CTs and what is the meaning of cl 1.0, cl5P10, cl 10P10 CTs?

3 Answers  

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What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

0 Answers   Eprosys Engineering Consultants,

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