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…
Characteristics of Negative Feedback Amplifiers: The Characteristics of Negative Feedback Amplifiers are given below Stabilization of Gain With Negative Feedback: The variations in temperature, supply voltages, ageing of components or…
Effects of Negative Feedback in Amplifiers: Decibels of Feedback - Effects of Negative Feedback in Amplifiers can be measured in decibels. A statement that 40 dB of feedback has been…
Cryogenically Cooled Amplifiers: The term solid-state is used deliberately here; it does not mean "semiconductor." In terms of the somewhat older maser parlance, it means the opposite of gaseous, i.e.,…
Noise Temperature in Communication System: The concept of noise figure, although frequently used, is not always the most convenient measure of noise, particularly in dealing with UHF and microwave low-noise…
Noise Figure in Communication System: The Noise Figure in Communication System are namely, 1.Signal to Noise Ratio: The calculation of the equivalent noise resistance of an amplifier, receiver or device may…
Noise Calculation in Electronic Communication System: The Noise Calculation in Electronic Communication System are namely, 1.Addition of Noise due to Several Sources: Let's assume there are two sources of thermal…
Internal Noise in Communication System: Under the heading of Internal Noise in Communication System, we discuss noise created by any of the active or passive devices found in receivers. Such…
