Question

An electric heater emits 1000 watt of thermal
radiation. The coil has a surface area of 0.020m².
Assuming that the coil radiates like a black
body,
find its temperature (sigma = 6 x 10-8 Wm-2 K-4)
a) 1235 K
b) 1124 K
c) 737 K
d) 955 K.
​

Answer 1

Answer:

sorry dear don't know the answer

Answer 2

Answer:

a

Explanation:

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