NEET 2003 Physics question

PhysicsCurrent ElectricityNEET 2003

Two 220 volt, 100 watt bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220 volt a.c. supply line. The power drawn by the combination in each case respectively will be :

Answer: (4)

Solution

The supply voltage equals the rated voltage, so each bulb has resistance . Series: , power W

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Question ID VK-089163