The filament temperature of a light bulb is 2 100 K when the bulb delivers 40.0 W of power.If its emissivity remains constant,what power is delivered when the filament temperature is 2 500 K?
A)161 W
B)121 W
C)80.3 W
D)60.3 W
E)40.2 W

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The Answer of The filament temperature of a light bulb is 2 100 K when the bulb delivers 40.0 W of power.If its emissivity remains constant,what power is delivered when the filament temperature is 2 500 K?
A)161 W
B)121 W
C)80.3 W
D)60.3 W
E)40.2 W

The Filament Temperature of a Light Bulb Is 2 100