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Some electric bulbs are connected in series across a 220 volt supply. If one bulb gets fused and the rest are again connected in series to the same supply after removing the fused one. What will happen to the illumination?

Ritika Singh , 8 Years ago
Grade 12
anser 1 Answers
Ansari Danish

Last Activity: 8 Years ago

Illumination Will Increase as the total resistance will decrease.
Let suppose there were 10 bulbs of 100 ohm
Total resistance =1 Kohm
220 v supply 
I=V/R
i=220/10000
I is inversely proportional to R
I is directly proportional to luminosity
therefore luminosity is inversely proportional resistance 
Hence Luminosity increases
 

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