50 electric bulbs are connected across supply of 220 volts.
After one bulb is fused remaining 49 bulbs are again
connected to same supply. which case will have more
illumination & WHY????????
Answers were Sorted based on User's Feedback
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
|Is This Answer Correct ?||10 Yes||0 No|
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
|Is This Answer Correct ?||4 Yes||2 No|
Answer / ashok mishra
49 bulbs will give more due to large voltage as compare to 50 bulbs
|Is This Answer Correct ?||1 Yes||0 No|
Answer / suresh
in the second case bulbs
wont glow as circuit open
|Is This Answer Correct ?||2 Yes||3 No|
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....
|Is This Answer Correct ?||2 Yes||8 No|
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