FIGURE shows a closed loop system with a variable gain element G in

the feedback path.

(a) Derive an expression for y/x

(b) Show that for large values of K1 and K2 the value of y/x can be varied

directly by changing the gain of the feedback element G.

Transcribed Image Text:

* x K G K y FIG. 3 * x K G K y FIG. 3