Question: A cubical power transistor with dimensions H = W = L = 0.2 m, is cooled by an air stream of temperature Tinf= 20C to

A cubical power transistor with dimensions H = W = L = 0.2 m, is cooled by an air stream of temperature Tinf= 20C to maintain transistor surface temperature at Ts = 100 C. Air maintains an average convection coefficient of h= 250 W/mK onthesurfaceof the transistor. What is the power dissipation?

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