a bulb of 100W and anather bulb of 200W , rated supply voltage 230v.when supply voltage is reduced to 100v,which bulb will give more light? and why with calculation?

12 Answers  

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Whats the principle of lightning? How protection against lightning is achieved? Types of protection? How to select the height of lightning spike? as per the area.

4 Answers   HAL,

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for distribution line ratio of x/r 1.<0.1 2.>10 3.>1 4.<0.01

3 Answers   HAL, HPPSC,

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How many 2 ton window A/c can runs on a 125 KVA generator?

2 Answers  

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

0 Answers  

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explain remenance . differentiate high remenance type ct & low remenance type ct

0 Answers   Coca Cola,

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what is the diff between VCB & ABCB breaker in substaions? explain the operating priciples of VCB & ABCB

1 Answers  

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what is the purpose of slope in the differential relay?why we are using two slope?but in busbar differential we are using only one slope.why?

0 Answers  

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We have got the HT connection of 1000 KVA in which we have installed a seprate APFC panel at the PCC end & seprate KWH meter is installed. My question is that does the KWH reading shown in the meter is a part of the Consumption ???? ( approx 500 units is shown)

1 Answers  

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why we use MV panels??? what's r all the needs

4 Answers  

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What is a captive power plant?

2 Answers  

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pls send link about servo motor

3 Answers  

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