A process with a transfer function G(s)=. 10 is controlled by a proportional (s+1.6.s-4) controller in a standard feedback control loop. (a) Discuss whether the process is stable or not. (b) Transfer function of the final control valve, one of the other standard elements in the loop 1 1 Gy(s) = (s+10) and the transfer function of the measuring element is G given. Draw (s+5) the block diagram of the feedback control loop. (c) At what range value should the gain of the Kc proportional controller be for the loop to be stable? (d) Show that the feedback loop system is stable by trying one of the Kc values at which the system is stable