110`underset(rms)(V)` is applied across a series circuit having resistance `11 Omega` and independence `22 Omega` . The power consumed is
A. 275 W
B. 366 W
C. 550 W
D. 1100 W

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1 Answers

Correct Answer - A
P = `underset(rms)(V)``underset(rms)(V)``underset(rms)(I)`cos`phi`
= `underset(rms)(V)`(`underset(rms)(V)`/Z)(R/Z) = `(110)^(2)`(11)/`(22)^(2)` = 275 W

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