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Airida [17]
3 years ago
5

If you wanted to find the area of the hot filament in a light bulb, you would have to know the temperature (determinable from th

e color of the light), the power input, the Stefan-Boltzmann constant, and what property of the filament
Physics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer:

To find out the area of the hot filament of a light bulb, you would need to know the temperature, the power input, the Stefan-Boltzmann constant and <u>Emissivity of the Filament</u>.

Explanation:

The emissive power of a light bulb can be given by the following formula:

E = σεAT⁴

where,

E = Power Input or Emissive Power

σ = Stefan-Boltzmann constant

ε = Emissivity

A = Area

T = Absolute Temperature

Therefore,

A = E/σεT⁴

So, to find out the area of the hot filament of a light bulb, you would need to know the temperature, the power input, the Stefan-Boltzmann constant and <u>Emissivity of the Filament</u>.

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