Share
Explore BrainMass

Energy radiated per minute by a tungsten filament

Calculate the energy radiated per minute from the filament of an incandescent lamp at 2000 K, if the surface area is 5 x 10^-5 m^2 and its relative emittance is 0.85.

Solution Preview

We can consider the filament as a case of blackbody emission.
The energy radiated is given by,

E = A e $ t T^4

(This ...

Solution Summary

Step by step solution to the very interesting problem.

$2.19