A 50 W bulb is in series with a room heater and the combination is connected across the mains. To get max. heater output, the 50 W bulb should be replaced by
Text Solution
Verified by ExpertsThe correct answer is:
D
For power across heater is maximum resistance of bulb should be minimum
P heater = 
R H
R bulb is minimum for 200 W.
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