Answered: voltage amplifier is used to amplify…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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1.A voltage amplifier is used to amplify radio signals from the antenna in a car radio system. The incoming radio signal voltage from the antenna, vs = 500 mV and its resistance is Rs = 100 N. Assume the open circuit voltage gain of the amplifier, 100 and the output resistance is 1 k.

i. Design the amplifier by finding its input resistance, R; if the amplifier voltage gain (vo/vs) is given as 20.

ii. If the amplifier output is connected to a speaker (load), find the new amplifier voltage gain (vo/vs) if the load resistance, R1, value is 1 kN.

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