Physics, 19.03.2021 02:30 monicaharris3

A 15cm x 20cm printed circuit board is to be cooled by natural convection at room temperature of 20oC. The PCB is dissipating heat at 8W f power in steady operation, determine average temperature of the hot surface of the board when (a) the board is vertical, (b) horizontal with hot surface facing up, and (c) horizontal with hot surface facing down. Emissivity of the board surface is 0.8/

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A 15cm x 20cm printed circuit board is to be cooled by natural convection at room temperature of 20o...

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