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An amplifier operating from a ±15 V DC supply provides an output voltage of 20 V peak-to-peak and an output current of 23 mA peak to a resistive load when a signal of 2 V peak is connected to its input. The current drawn by the input port of the amplifier is 2 mA rms. A current of 15 mA DC is provided by each DC power supply. For this amplifier, calculate: the voltage gain in dB the current gain in dB  the power gain in dB the efficiency (as a percentage) the input resistance in Ohms

An amplifier operating from a ±15 V DC supply provides an output voltage of 20 V peak-to-peak and an output current of 23 mA peak to a resistive load when a signal of 2 V peak is connected to its input. The current drawn by the input port of the amplifier is 2 mA rms. A current of 15 mA DC is provided by each DC power supply. For this amplifier, calculate: the voltage gain in dB the current gain in dB  the power gain in dB the efficiency (as a percentage) the input resistance in Ohms

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
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An amplifier operating from a ±15 V DC supply provides an output voltage of 20 V peak-to-peak and an output current of 23 mA peak to a resistive load when a signal of 2 V peak is connected to its input. The current drawn by the input port of the amplifier is 2 mA rms. A current of 15 mA DC is provided by each DC power supply. For this amplifier, calculate:

the voltage gain in dB

the current gain in dB 

the power gain in dB

the efficiency (as a percentage)

the input resistance in Ohms

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