A power transistor mounted on a finned heat sink can be modeled as a spatially isothermal object with internal heat generation and an external convection resistance. Consider such a system of mass M, specific heat c, and surface area A3, which is initially in equilibrium with the environment at T. Suddenly, the device is energized such that a constant heat generation Eg ( W ) occurs. Derive the temperature response of the device, /i, in terms of R,C, and t, where TT() and T() is the steady-state temperature corresponding tot ii=TiT():Ti= initial temperature of device: R= thermal resistance 1/hA, and C= thermal capacitance Mc. Use this expression to answer the following. A device which generates 60W of heat is mounted on an pure aluminum heat sink weighing 0.35kg and reaches a temperature of 100C in ambient air at 20C under steady-state conditions. If the device is initially at 20C, what temperature, in C, will it reach 5min after the power is switched on? T(t=5min)=