A shunt-shunt feedback amplifier is shown in Fig XXXXXXXXXXa) Identify the feedback topology by labeling the input mixing variables and the output variables, (b) verify that negative feedback is...

A shunt-shunt feedback amplifier is shown in Fig. 31.59. (a) Identify the feedback topology by labeling the input mixing variables and the output variables, (b) verify that negative feedback is employed, (c) draw the closed-loop small-signal model, and (d) find the values of R_BI
and R_B0.