## Large Signal or Power Amplifiers Interview Questions and Answers

Large Signal or Power Amplifiers Interview Questions and Answers: 1. What is meant by power amplifier? Ans. Power amplifier is meant to raise the power level of the input signal and…

## Differential Amplifier Interview Questions and Answers

Differential Amplifier Interview Questions and Answers: 1. What is differential amplifier? Ans. An amplifier, which is designed to amplify the difference between two input signals is called the differential amplifier. The…

## Operational Amplifiers Interview Questions and Answers

Operational Amplifiers Interview Questions and Answers: 1. What is an op-amp? Ans. The name operational amplifier stems from its original use for mathematical operations (such as addition, subtraction, multiplication, differentiation and…

## Op Amps with Negative Feedback Interview Questions and Answers

Op Amps with Negative Feedback Interview Questions and Answers: 1. What kind of negative feedback is present in a noninverting op-amp? Ans. Negative voltage series feedback. 2. What is effect of…

## Feedback Pair Connection – Operation and its Equivalent Circuit

Feedback Pair Connection - Operation and its Equivalent Circuit: The feedback pair connection (Fig. 19.58) is a two-transistor circuit that operates like the Darlington amplifier. It makes use of a…

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## Effect of Negative Feedback on Bandwidth

Effect of Negative Feedback on Bandwidth: The effect of negative feedback on bandwidth is given below as From Eq. (19.8) voltage gain with feedback is given as and from the…

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## Effect of Negative Feedback on Output Impedance

Effect of Negative Feedback on Output Impedance: Just as high input impedance is advantageous to an amplifier, so is low output impedance. With lower output impedance, the amplifier is better…

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## Effect of Negative Feedback on Input Impedance

Effect of Negative Feedback on Input Impedance: High input impedance is always desirable in an amplifier as it will not load the preceding stage or the input voltage source. Such…

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