Question

Which of the following are true:

(a) Sensitivity of regenerative feedback is more than negative feedback but less than non-feedback system

(b) Sensitivity of regenerative feedback is more non-feedback system but less than negative feedback system

(c) Sensitivity of regenerative feedback is less than both

(d) Sensitivity of regenerative feedback is more than both

I had been asked this question by my college director while I was bunking the class.

I want to ask this question from Linearizing Effect and Regenerative Feedback topic in division Feedback Characteristics of Control Systems of Control Systems

Answer 1

Correct choice is (c) Sensitivity of regenerative feedback is less than both

The explanation is: Sensitivity of the positive feedback system is even more than non-feedback system and it is more by a factor of 1/1-GH.