A position control system can be analyzed using the feedback system in Figure 10.38, where the process transfer function is

5 G(s): = s(s + 1)(0.4s + 1)* A phase-lag compensator that provides a phase margin of P.M. 30 is: 1+s a. Ge(s) = 1 + 106s 1 + 26s b. G.(s) = c. Ge(s) = 1 + 115s 1 + 106s 1+118s d. None of the above