how many bulb of 60watt at 300volt is used to maintain 0.25
amp.with valid reason?
Answers were Sorted based on User's Feedback
Answer / ashutosh khadgaray
2 coz
P=VICOS(Fi)
60=300*I*0.8
I=.125
0.125 for 1 bulb so for 2 bulb it will be 0.25
Is This Answer Correct ? | 11 Yes | 3 No |
Answer / ramamurthy
20 of them
4 groups of lamps in series, with each group having 5 lamps
in parallel
Is This Answer Correct ? | 5 Yes | 1 No |
Answer / kapil joshi
Only 1 Bulb
Because Total Power = 300 * 0.25 = 75 W
Required Power For 2 Bulb =2* 60 = 120 W
which is greater than 75 W
So we can use only 1 bulb
Is This Answer Correct ? | 1 Yes | 2 No |
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