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What is the net amount of energy per unit time being received by a body having a temperature of 40 °C in a surrounding of 60°C? (The surface area of body = 2m2, σ = 5.67*10-8W/ m2K4 & emissivity of 0.4).

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Heat transfer describes the flow of heat (thermal energy) due to temperature differences and the subsequent temperature distribution and changes.


What is the net amount of energy per unit time being received by a body having a temperature of 40 °C in a surrounding of 60°C? (The surface area of body = 2m<sup>2</sup>, σ = 5.67*10<sup>-8</sup>W/ m<sup>2</sup>K<sup>4</sup> & emissivity of 0.4).






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