Answer / ravi

If the bulb is incendescent bulb. Then there is no effect
on working by changing the supply from AC to DC.

If current is half then illumination is decreased to four
times.

Answer / gobikrishnan.t

There is no variation among the illumination on AC and DC
voltage because the potential what we applied is same on
both factors.

Answer / mkumar

nothing wil happen a bulb can also glow on DC supply

Answer / vidhate

bulb will indicate but not continusaly it's always on-of/on-
of

When a capcitor is used on 440 v thenthis is kvar rating 25kvar .my question is that when we use this capcitor  use 480 v &525 volt .how much kvar increase . Plz give my question ans. And give answer with formula .my mail id is rohitashsaini013@gmail.com

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how to calculate capacitor bank value to maintain unity power factor plz xplain with some suitable xample?

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0 Answers  

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what happens if commutator is removed in an dc machine?

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can u give me a brief idea about power line carrier communication ??

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what is trip circuit supervision relay? How does it work in switchgear?

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