Answered: R, = 8 ka R R2 = 100 kn R3 = 20 kn R =…

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Electrical Engineering

R, = 8 ka R R2 = 100 kn R3 = 20 kn R = 100 kn Figure Q.B1a

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter2: Electrical Quantities And Ohm’s Law

Section: Chapter Questions

Problem 2RQ: What is an ampere?

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Concept explainers

Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.

Question

(a) In the op-amp based circuit of Figure Q.B1a, the values of R1, R2, R3 and R4 are as
indicated.
i) If V1 = V2 = 3.0V, determine the value of Vo

R, = 8 ka
R
R2 = 100 kn
R3 = 20 kn
R = 100 kn
Figure Q.B1a

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Follow-up Questions

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Follow-up Question

If the op-amp based circuit of Figure Q.B1a is now required to operate as a difference
amplifier, to what value R3 must be modified if the value of the other three resistors: R1,
R2, and R4, are to remain as indicated? Then, determine the voltage gain of the difference
amplifier with the R3 value modified as required

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