two lamps of rating 200w-250v ,100w-250v are connected to a power supply of 250v.calculate total current consumed
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Answered by
3
We know that, R = V2 /P
Hence resistance of 1st bulb = (250)2 / 200 = 625/2
resistance of 2nd bulb = (250)2 / 100 = 625
Total resistance of the circuit when the bulbs are connected in series = 625/2 + 625 = 1875/2 ohm
Therefore, total power consumed in the circuit , P = (250)2/ (1875/2) = 67 watt
Hence resistance of 1st bulb = (250)2 / 200 = 625/2
resistance of 2nd bulb = (250)2 / 100 = 625
Total resistance of the circuit when the bulbs are connected in series = 625/2 + 625 = 1875/2 ohm
Therefore, total power consumed in the circuit , P = (250)2/ (1875/2) = 67 watt
Answered by
27
GIVEN That:)
1st bulb = (250)2 / 200 = 625/2
o2nd bulb = (250)2 / 100 = 625
Total resistance of the circuit when the bulbs are connceted in series = 625/2 + 625 = 1875/2 ohm
Hence,, total power consumed in the circuit , P = (250)2 / (1875/2) = 67 w
that's all
by Sujeet yaduvanshi
1st bulb = (250)2 / 200 = 625/2
o2nd bulb = (250)2 / 100 = 625
Total resistance of the circuit when the bulbs are connceted in series = 625/2 + 625 = 1875/2 ohm
Hence,, total power consumed in the circuit , P = (250)2 / (1875/2) = 67 w
that's all
by Sujeet yaduvanshi
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