Answer / k.prakashchandra

Its first function is strike arc across the tube by inducing
high voltage with the help of starter and the second is to
limit the current as the resistance across the tube becomes
zero after the arc is struck.

Answer / thowsif_emerson

Unlike incandescent lamps, fluorescent lamps always require
a ballast to regulate the flow of power through the lamp.

why r use the wave taper in the substation ?

2 Answers   L&T,

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what the purpose of transmited high voltage in over head lines

3 Answers   NCC,

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working principle a.v.r. ?

0 Answers   Gem Sugars,

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can a 50 Hz transformer work satisfactorily if placed under 60 Hz,what are the prices and losses that will arise

5 Answers  

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Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

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How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?

0 Answers  

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What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

0 Answers  

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why power factor is only cosine angle not sine angle?

2 Answers  

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What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

0 Answers   TATA,

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why the transformer has no starter

2 Answers   NTPC,

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What is synchro?

0 Answers  

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The unit of electrical charge is the

1 Answers  

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