Homework Statement
The filament of a light bulb has a temperature of 3.2*10^3°C and radiates 59 watts of power. The emissivity of the filament is 0.38. Find the surface area of the filament. Homework Equations
\DeltaQ/\DeltaT=e\sigmaAT^4
\sigma=5.67*10^-8
The Attempt at a Solution...