Chapter 12, Problem 12.3P

The ideal feedback transfer function is given by Equation (12.5). (a) Assume the feedback transfer function is $\beta =\mathrm{0.15.}$ Determine the loop gain $T$ and the closed-loop gain $A_f$ for (i) $A=\infty ,$ (ii) $A=80\text{dB},$ and (c) $A={10}^2.$ (b) Repeat part (a) for $\beta =0.25$