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1(c). Fig. 1(c) shows a public addressing system i.e. a voltage amplifier, its input is connected with a microphone (input signal source) and output is connected with a loud speaker (load). If the voltage of the microphone is 250mV determine the output voltage across the speaker. Assume that the voltage gain of the amplifier A, = 150, the input and output resistance of are R; = 1.5kN and Ro : speaker resistances are Rs = 1.0k and R1 = 1502 respectively. 1000 respectively. It is also assume that the microphone and %3D

1(c). Fig. 1(c) shows a public addressing system i.e. a voltage amplifier, its input is connected with a microphone (input signal source) and output is connected with a loud speaker (load). If the voltage of the microphone is 250mV determine the output voltage across the speaker. Assume that the voltage gain of the amplifier A, = 150, the input and output resistance of are R; = 1.5kN and Ro : speaker resistances are Rs = 1.0k and R1 = 1502 respectively. 1000 respectively. It is also assume that the microphone and %3D

Introductory Circuit Analysis (13th Edition)
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(c). Fig. 1(c) shows a public addressing system i.e. a voltage amplifier, its input is connected with a microphone (input signal source) and output is connected with a loud speaker (load). If the voltage of the microphone is 250mV determine the output voltage across the speaker. Assume that the voltage gain of the amplifier A, = 150, the input and output resistance of are R = 1.5kn and Ro = 1000 respectively. It is also assume that the microphone and speaker resistances are Rs = 1.0kN and R1 = 1500 respectively. Rs = 1.0 kN Ro = 100 N Vs = 250 mV R = Vi 1.5kN A, vi R1 = vo 1502 Microphone Loud Speaker Equivalent circuit of a voltage amplifier
Transcribed Image Text:1(c). Fig. 1(c) shows a public addressing system i.e. a voltage amplifier, its input is connected with a microphone (input signal source) and output is connected with a loud speaker (load). If the voltage of the microphone is 250mV determine the output voltage across the speaker. Assume that the voltage gain of the amplifier A, = 150, the input and output resistance of are R = 1.5kn and Ro = 1000 respectively. It is also assume that the microphone and speaker resistances are Rs = 1.0kN and R1 = 1500 respectively. Rs = 1.0 kN Ro = 100 N Vs = 250 mV R = Vi 1.5kN A, vi R1 = vo 1502 Microphone Loud Speaker Equivalent circuit of a voltage amplifier
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