A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance R is connected in series, it works perfectly and the bulb consumes 500w. The value of R is

Options

(a) 230Ω
(b) 46Ω
(c) 26Ω
(d) 13Ω

Correct Answer:

26Ω

Explanation:

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