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For the system shown gain with feedback is 200. Find feedback factor.

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For the system shown gain with feedback is 200. Find feedback factor.

(a) 0.41

(b) 5

(c) 0.0041

(d) It can be any real number

This question was posed to me by my college professor while I was bunking the class.

My question is based upon Effects of Feedback topic in portion General and Feedback Amplifiers of Analog Circuits

1 Answer

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Correct option is (c) 0.0041

Easy explanation: AF = A/1+Aβ

A = A1 x A2 = 1200

Thus 1 + Aβ = 1200/200 = 6

Aβ = 5

β = 5/A = 0.0041.

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