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Types of Electric Circuits Series and Parallel

A bulb of 100...

Question

A bulb of 100 W - 200 V is connected to a 160 V supply. Find the power consumed.

A

32 W

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B

25 W

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C

50 W

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D

64 W

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Solution

The correct option is D 64 W
$R = \frac{(200)^{2}}{100} = 400 Ω$

$P_{c o n s u m e d} = \frac{160 \times 160}{400} = 64 W$

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