The filament of a 75-W light bulb is at a temperature of 3,100 K. Assuming the filament has anemissivity e = 0.4, find its surface area.

Step 1:Given data:Power radiated P=75 WStefan-Boltzmann constant,σ=5.67∗10−8W/(m2K4)Emissivity,…

Answered: The filament of a 75-W light bulb is at…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 58PQ

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The filament of a 75-W light bulb is at a temperature of 3,100 K. Assuming the filament has an emissivity e = 0.4, find its surface area.