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Grade: 11

                        

Two bulbs each of potential difference 220 volt and power 50 watt for the first and 100 watt for the second bulb are connected in series connection which is connected to the mains of 220 volt. Explain why 50 watt bulb consumes more power than the 100 watt bulb

6 years ago

Answers : (1)

raunak samanta
37 Points
							as we now p=V^2/R  calc. resistence of each bulb i.e. 968 and 484 ohms .
now if we connect it in series same current will flow through both the bulbs!!!
from formula p=I^2 R power is directly proportional to R(resistence)
hence 1st bulb with more resistence consumes more power.

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6 years ago
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