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Suppose R2 =100 kΩ. What value of R1 gives a gain of−5?

Suppose R2 =100 kΩ. What value of R1 gives a gain of−5?

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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Suppose R2 =100 kΩ. What value of R1 gives a gain of−5?

Expert Solution
Step 1

Given:

To find the value of R1 when gain is -5.

R2 =100 kΩ.

 

Step 2

The voltage gain can be defined as:

Av=vovi

Here,

Av can be voltage gain,

vo can be output voltage,

vi can be input voltage.

 

Step 3

In inverting amplifier, the voltage gain can be written as:

Av=-R2R1

Here,

R1 can be input resistor,

R2 can be feedback resistor.

 

steps

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