Question: Consider a thin 2 4 cm - long and 2 0 c m - wide horizontal plate snspended in air at 2 0 C .

Consider a thin 24 cm-long and 20cm-wide horizontal plate snspended in air at 20C. The plate
is equipped with electric resistance heating wire. Now the heater is traned on and the plate
temperature rises and reaches 30C at steady state operating conditions. The plate has an
emissivity of =0.80 and =5.6710-8. Calculate the total rate of heat transfer that has been
generated in the element.
Consider a thin 24 cm-long and 20cm-wide horizontal plate snspended in

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