how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid rea

how many bulb of 60watt at 300volt is used to maintain 0.25
amp.with valid reason?

Question Posted / akshay

4 Answers
6179 Views
Cords Cable, TATA, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?..

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

how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?..

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

how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?..

Answer / dwara

Both ans are correct. Rammamurthy's ans is for DC where as Ashutosh Khadgaray's ans is for AC

Is This Answer Correct ?

1 Yes

0 No

how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?..

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

Post New Answer

More Electrical Engineering Interview Questions

What is the diffrece between CAPACITOR BANK & CAPACITOR OF MOTOR?

4 Answers

What is DPR relay, And what for??

2 Answers Engro,

What is inverse definite minimum time lag relay? Where is it use?

0 Answers TATA,

hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?

0 Answers

Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)

0 Answers

Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

0 Answers

What is the name of the winding to which supply is given?

0 Answers

what is difference between RCB,RCCB &RCBO?

3 Answers ABB,

MICOM P122 OC/EF RELAY HAVE HARMONIC RESTRAIN OR NOT?

1 Answers

Why 50hz and 60hz frequencies are used by the world, why they are not taking 55hz?

3 Answers

why the rating of transformer in k.v.a

4 Answers

what are the different type of transformers available in markets???

6 Answers Atomic Energy Commission,

For more Electrical Engineering Interview Questions Click Here