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In the circuit shown in the given figure N is a finite gain amplifier with a gain of k,a very large input impedance, and a very low output impedance. The input impedance of the feedback amplifier with the feedback impedance Z connected as shown will be (0) 2 (1-1) Z Z (c) (k-1) ५ N (b) Z (1-k) Z (d) (1-k)

In the circuit shown in the given figure N is a finite gain amplifier with a gain of k,a very large input impedance, and a very low output impedance. The input impedance of the feedback amplifier with the feedback impedance Z connected as shown will be (0) 2 (1-1) Z Z (c) (k-1) ५ N (b) Z (1-k) Z (d) (1-k)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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### Circuit Analysis Question In the circuit shown in the given figure, \( N \) is a finite gain amplifier with a gain of \( k \), a very large input impedance, and a very low output impedance. The input impedance of the feedback amplifier with the feedback impedance \( Z \) connected as shown will be: #### Circuit Diagram - The diagram depicts an amplifier with a feedback loop. - The impedance \( Z \) is connected to the feedback path from output \( V_o \) to input \( V_i \). - The amplifier \( N \) has its input across \( V_i \) and its output across \( V_o \). #### Options for Input Impedance (a) \( Z \left(1 - \frac{1}{k}\right) \) (b) \( Z (1 - k) \) (c) \( \frac{Z}{(k - 1)} \) (d) \( \frac{Z}{(1 - k)} \) Choose the correct expression for the input impedance of the feedback amplifier.
Transcribed Image Text:### Circuit Analysis Question In the circuit shown in the given figure, \( N \) is a finite gain amplifier with a gain of \( k \), a very large input impedance, and a very low output impedance. The input impedance of the feedback amplifier with the feedback impedance \( Z \) connected as shown will be: #### Circuit Diagram - The diagram depicts an amplifier with a feedback loop. - The impedance \( Z \) is connected to the feedback path from output \( V_o \) to input \( V_i \). - The amplifier \( N \) has its input across \( V_i \) and its output across \( V_o \). #### Options for Input Impedance (a) \( Z \left(1 - \frac{1}{k}\right) \) (b) \( Z (1 - k) \) (c) \( \frac{Z}{(k - 1)} \) (d) \( \frac{Z}{(1 - k)} \) Choose the correct expression for the input impedance of the feedback amplifier.
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