Question: Electronic power devices are mounted to a heat sink having an exposed surface area of 0.045 m 2 and an emissivity of 0.80. When the

Electronic power devices are mounted to a heat sink having an exposed surface area of 0.045 m² and an emissivity of 0.80. When the devices dissipate a total power of 20 Wand the air and surroundings are at 27°C, the average sink temperature is 42°C. What average temperature will the heat sink reach when the devices dissipate 30 W for the same environmental condition?

Power device sur = 27°C 11t Heat sink, T, A, € Air T.= 27°C

Power device sur = 27C 11t Heat sink, T, A, Air T.= 27C

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