The tungsten filament of an incandescent lamp has a resistance of 200 at room temperature. (a)
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(a) What would the resistance be at an operating temperature of 1600oC?
(b) Assuming it is plugged into a 120-V outlet, what is its power output when just starting up?
(c) By how much does its power output change from the room temperature value when it is at its operating temperature?
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a R R 0 1 a D T 200 1 00045C1580 ...View the full answer
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