Consider the chip on the circuit board of Problem 6.26. To ensure reliable operation over extended periods, the chip temperature should not exceed 85°C. Assuming the availability of forced air at Too = 25°C and applicability of the prescribed heat transfer correlation, compute and plot the maximum allowable chip power dissipation Pc as a function of air velocity for 1 < V < 25 m/s. If the chip surface has an emissivity of 0.80 and the board is mounted in a large enclosure whose walls are at 25°C, what is the effect of radiation on the Pc-V plot?