Forty electric bulbs are connected in series across a 220 V supply. After one bulb is fused, the remaining 39 are connected again in series across the same supply. The illumination will be
A
More with 40 bulbs than with 39
B
More with 39 bulbs than with 40
C
Equal in both the cases
D
In the ratio of 
Text Solution
Verified by ExpertsThe correct answer is:
B
When 1 bulb fuses, the total resistance of the circuit decreases hence the current increases. Since 
, therefore illumination increases.
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