8.28 Consider the CE amplifiers of Fig. 8.13(b) for the case of I = 0.5 mA, β = 200, and VA = 30 V. Find Rin, Avo, and Ro. If you needed to raise Rin by a factor of 5 by changing I, what value of I is required, assuming that β remains unchanged? What are the new values of Avo and Ro? If the amplifier is fed with a signal source having Rsig = 10 kΩ and is connected to a load of 200- kΩ resistance, find the overall voltage gain, vo/vsig. 10 kΩ; −1200 V/V; 60 kΩ; 0.1 mA; −1200 V/V; 300 kΩ; −400 V/V