Asked by Justin
(a) What is the hot resistance of a 24 W light bulb that runs on 120 V AC?
(b) If the bulb's operating temperature is 2700°C, what is its resistance at 2570°C?
(b) If the bulb's operating temperature is 2700°C, what is its resistance at 2570°C?
Answers
Answered by
Henry
a. P = V^2/R = 24W.
120^2/R = 24
R = 600 Ohms.
.
120^2/R = 24
R = 600 Ohms.
.
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