Answer / deepak thakur

(1st case 220/50=4.40volt) & (2nd case220/49=4.48volt)

so well have gets more illumination in the 2nd case
bcoz each lamp have more voltage in this case

Answer / marimuthu

if that all 50 lamp are connected in series so that voltage went to divided by 50...
if got fused voltage will share with 49 lamp only

Answer / ashok mishra

49 bulbs will give more due to large voltage as compare to 50 bulbs

Answer / suresh

in the second case bulbs
wont glow as circuit open
now..

Answer / sudhakar g

Surely 50 Bulbs are give more illumination....According the
size of the room we can take the Illumination levels of the
lamps.....suppose in a room we can take CFL lamps of 3 nos
the lumens that can carry more than the lumens that carry
2nos .....calculate the room leght x width ....then it will
come in SQ MTRS and find the lumens of the Lamps we are
going to fix...convert those in to SQ FT by using
10.76...then we can get the Lux per foot....

Most electrical terms denoted by first letter of its name but Why current is denoted by "I".

4 Answers  

what is the main use of ac and dc drives ? it is only used for speed variation or for power saver also?

1 Answers  

difference b/w bus bar and tie line?if possible explain with eg:

2 Answers  

Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these

2 Answers  

What is the full form of SON-T lamp?

1 Answers   HAL,

when we given 3 phase supply to ups system, but out put comes with 3 phase + neutral how it possible? pls explain.

3 Answers   Enzen, Juniper Networks,

Why we apply only reduced voltage to the alternator while conducting slip test ? also the current increases to a larger value with reduced voltage itself Why ?

1 Answers  

IT IS DESIRABLE THAT THE INCOMING MACHINE SHOULD BE A LITTLE FAST AT THE TIME OF SYNCHRONIZING.EXPLAIN?

1 Answers  

Slow acting fuses are most often used for which application a) Lighting circuit b) heating circuit c) Motor D) Radar circuit

1 Answers  

why neutral of 6.6 kv star connected sq. cage induction motor does not get earthed, though for earth fault protection it is must.

7 Answers  

what happens if sf6ckt breaker gas pressure is high or low about the actual rating of gas pressure(5kg/cm2)

2 Answers  

What is turbocharger in a generator?

2 Answers