+1 vote
in Linear Integrated Circuits by (37.1k points)
If the feedback voltage and the output voltage are given as 10v and 4v. Find the gain of the feedback circuit in voltage-series feedback amplifier?

(a) 2.5v

(b) 40v

(c) 3v

(d) 6.2v

The question was asked during an interview.

This interesting question is from Voltage Series Feedback Amplifier topic in chapter Operational Amplifier Characteristics of Linear Integrated Circuits

1 Answer

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by (39.8k points)
Right answer is (a) 2.5v

Expand on the concept with: Gain of feedback, B =  Vf /Vo  = 10v/4v = 2.5v.

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