Two light bulbs shown in the circuit are having ratings 
and 
as shown in the figure. When the switch is closed, then
A
the intensity of light bulb 
increases
increases
B
the intensity of light bulb 
decreases
decreases
C
the intensity of light bulb 
remains unchanged
remains unchanged
D
the intensity of light bulb 
decreases
decreases
Text Solution
Verified by ExpertsThe correct answer is:
B
When the switch is open,
Power drop across bulb 
,
Power drop across bulb 
,
when the switch is closed,
Hence, intensity of bulb 
decreases. Intensity of bulb 
increases.
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