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....

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