Three electric bulbs of 
and 400 W are connected as shown in figure. The resultant power of the combination is
Text Solution
Verified by ExpertsThe correct answer is:
A
Let, the bulb 400 W is having resistance value of R. For 200 W, necessary value of resistance will be 2R.
Total value of resistance in the circuit will be
If 
is the maximum current in the circuit, then
Power of circuit as a whole
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