Physics, asked by lalhauhmangsongate, 7 months ago

A bulb has marked(100W-200V). What is the resistance of filament?

Answers

Answered by tosushilpandey

1

Answer:

400Ω

Explanation:

$V_{b}$ = 200V | $P_{b}$ = 100W

We know resistance R = $\frac{V_{b}^{2} }{P_{b}}$

R = (200^2)/100 = 40000/100 = 400Ω

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