Hi guys, I have been trying to do this problem for a while and I don't have any idea what I am doing wrong. The question is(adsbygoogle = window.adsbygoogle || []).push({});

The emissivity of tungsten is 0.350 . A tungsten sphere with a radius of 1.96cm is suspended within a large evacuated enclosure whose walls are at a temperature of 300K.

What power input is required to maintain the sphere at a temperature of 3300K if heat conduction along the supports is neglected?

I used H = Aeσ(T^4 - To^4) and I get

H = 579657.66W is this right or am I completely missing the question?

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# Homework Help: Power required to keep a sphere at 3300K

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