What is the peak (maximum) power dissipated by a 150-W light bulb attached to a 120...

Question

Question

What is the peak (maximum) power dissipated by a 150-W light bulb attached to a 120 V rms ac line?

Answer 1

Answer #1

And, if the bulb is rated 150 W at 240 V, then

at 120 V, i.e. half of 240 V,

P will get one-fourth.

Answer 2

Answer #2

300W

Answer 3

Answer #3

apply power P = V^2/R

as Vmax = Vrms * sqrt 2

so P = 120*1.414)^2/(150)

P = 192 Watts

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Answer 4

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