In the circuit shown below, if R1=R2=R3=R4, then the voltage at the negative terminal of the Op-amp (V-) equals to: R1 R2 Vout R3 V2 + R4 a. 0.5*V2 O b. 0.5*V1 O c. Zero O d. (V2-V1) O e. None of the answers

In the circuit shown below, if R1=R2=R3=R4, then the voltage at the negative terminal of the Op-amp (V-) equals to: R1 R2 Vout R3 V2 + R4 a. 0.5V2 O b. 0.5V1 O c. Zero O d. (V2-V1) O e. None of the answers

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter18: Resistive-inductive Parallel Circuits

Section: Chapter Questions

Problem 13PP: In an R-L parallel circuit, IT=1.25 amps, R=1.2k, and XL=1k. Find IR

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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

In the circuit shown below, if R1=R2=R3=R4, then the voltage at the negative terminal of the Op-amp (V-) equals to:
R1
R2
Vout
R3
V2
+
R4
a. 0.5*V2
O b. 0.5*V1
O c.
Zero
O d. (V2-V1)
O e. None of the answers

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