A 741 op amp has an open-loop voltage gain of 2×10$, input resistance of 2 MN, and output resistance of 50 N. The op amp is used in the circuit of the figure below. Find the closed-loop gain Vo/Vs. Determine current i when Vs = 2 V. 20 kQ 10 k2 1 741 Us

A 741 op amp has an open-loop voltage gain of 2×10$, input resistance of 2 MN, and output resistance of 50 N. The op amp is used in the circuit of the figure below. Find the closed-loop gain Vo/Vs. Determine current i when Vs = 2 V. 20 kQ 10 k2 1 741 Us

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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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

Operational Amplifier

1. A 741 op amp has an open-loop voltage gain of 2×105, input resistance of 2 MO, and output resistance of 50 N.
The op amp is used in the circuit of the figure below. Find the closed-loop gain Vo/Vs. Determine current i when
Vs = 2 V.
20 kN
ww
10 k2
741

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