Interview Questions Answers in Electrical Engineering

ahir

{ City } vadodara
< Country > india
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User No # 47155

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Question { 19904 }

if two bulb of 50w &30w apply in series having 230v the
which bulb glow bright ,why

Answer

AS we know for series ckt p=i^2/r...

so, in which buld have low resistance will blow more.....

and 50W BULB have less r..

so , it blow brightly....

Is This Answer Correct ?

6 Yes

6 No

Question { Fenner, 9149 }

What is mean by Power factor

Answer

pawer factor is define as ratio bet. resistance and reactance.....(R/Z)

IT`S ALSO phase diff. bet. vol. & current.....
it may be lagging or leading type,,,

Is This Answer Correct ?

4 Yes

4 No