An electric bulb is rated 220v and 100w . when is operated an 110v , the power consumed will be. a) 100w b) 75w c) 50w d) 25w
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P=V²/R
R = V²/P
R = 484Ω
P = V²/R
= 12100/484 = 25W
hence the correct option is (d).
hope it helped you a lot
please mark it as the brainliest answer
R = V²/P
R = 484Ω
P = V²/R
= 12100/484 = 25W
hence the correct option is (d).
hope it helped you a lot
please mark it as the brainliest answer
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