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(i) With the aid of a diagram, explain what is meant by an invertina amplifier. (ii) With no input signal applied to the amplifier, the voltage between the collector and emitter of the transistor is 2.5 V. Calculate: (a) the voltage across the collector resistor (b) the collector current (c) the base current (d) the current gain B of the transistor

(i) With the aid of a diagram, explain what is meant by an invertina amplifier. (ii) With no input signal applied to the amplifier, the voltage between the collector and emitter of the transistor is 2.5 V. Calculate: (a) the voltage across the collector resistor (b) the collector current (c) the base current (d) the current gain B of the transistor

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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Q2 (i) Figure 2.1 shows a circuit for an inverting amplifier using a silicon transistor. 4.7 kQ 520 k2 9 V output input Figure 2.1 (i) With the aid of a diagram, explain what is meant by an invertina amplifier. With no input signal applied to the amplifier, the voltage between the collector and emitter of the transistor is 2.5 V. Calculate: (a) the voltage across the collector resistor (b) the collector current (c) the base current (d) the current gain B of the transistor (ii) Calculate a new value for the base resistor so that the circuit may more effectively reproduce an amplified signal. Explain with the aid of a diagram why your new design is better. (iv) Input and output coupling capacitors are to be added to the above circuit. If the reactance of the capacitors are to be less than 100 Q at the frequency of 500 Hz, calculate a suitable value for these capacitors.
Transcribed Image Text:Q2 (i) Figure 2.1 shows a circuit for an inverting amplifier using a silicon transistor. 4.7 kQ 520 k2 9 V output input Figure 2.1 (i) With the aid of a diagram, explain what is meant by an invertina amplifier. With no input signal applied to the amplifier, the voltage between the collector and emitter of the transistor is 2.5 V. Calculate: (a) the voltage across the collector resistor (b) the collector current (c) the base current (d) the current gain B of the transistor (ii) Calculate a new value for the base resistor so that the circuit may more effectively reproduce an amplified signal. Explain with the aid of a diagram why your new design is better. (iv) Input and output coupling capacitors are to be added to the above circuit. If the reactance of the capacitors are to be less than 100 Q at the frequency of 500 Hz, calculate a suitable value for these capacitors.
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