If a space heater consisted of a 10.0 cm radius iron ball through which electric

Question

If a space heater consisted of a 10.0 cm radius iron ball through which electrical current was passed in order to heat the ball, what temperature would it need to be raised to in order to radiate 500 W into the surrounding air (which is at a temperature of 20oC? Assume the ball is a perfect blackbody.
530 K 346 K 510 K 730 K If a space heater consisted of a 10.0 cm radius iron ball through which electrical current was passed in order to heat the ball, what temperature would it need to be raised to in order to radiate 500 W into the surrounding air (which is at a temperature of 20oC? Assume the ball is a perfect blackbody.
530 K 346 K 510 K 730 K If a space heater consisted of a 10.0 cm radius iron ball through which electrical current was passed in order to heat the ball, what temperature would it need to be raised to in order to radiate 500 W into the surrounding air (which is at a temperature of 20oC? Assume the ball is a perfect blackbody. If a space heater consisted of a 10.0 cm radius iron ball through which electrical current was passed in order to heat the ball, what temperature would it need to be raised to in order to radiate 500 W into the surrounding air (which is at a temperature of 20oC? Assume the ball is a perfect blackbody.
530 K 346 K 510 K 730 K 530 K 346 K 510 K 730 K

Explanation / Answer

E = ?(T^4-Ts^4)

(T^4-Ts^4) = 500/5.67 * 10^-8

SOLVING TO T, WE GET 346K

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