For an ideal op amp, choose R1 and R2 to get a voltage gain of -20V/V and an input resistance of 80kΩ.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
Problem 22RQ
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For an ideal op amp, choose R1 and R2 to get a voltage gain of -20V/V and an input resistance of 80kΩ.

R2
R1
A
Vo
+
Vi
Rin
Transcribed Image Text:R2 R1 A Vo + Vi Rin
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