02: What is the op amp? Next » This set of Electric Circuits Multiple Choice Questions & Answers (MCQs) focuses on “The Inverting and Non-Inverting Amplifier Circuit”. Ans:In amplifiers cascading will increase the signal strength at recievers. The input junction is reverse biased and output junction is forward biased. 6. 3. nice questions, but less questions. 2. Diode cut in voltage value for si and Ge diodes? Defending a doctoral thesis and facing viva questions is a very critical part of every research scholar. Positive base and negative base clippers means 9. 5. What is an operational amplifier? Resources. A Class A power amplifier is one in which the output current flows for the entire cycle of the AC input supply. Barun Singh says: at . Viva Questions: 1. Ans:Generally the gain is considered at peak values of voltage/current at , which value is 0.707, if we convert this into dB which is equal to -3dB. 4. A) 1,2,3. 2. Determine the output from the following circuit a) 180 o in phase with input signal b) 180 o out of phase with input signal c) Same as that of input signal d) Output signal cannot be determined View Answer. 1. It combines the high resistance, large Transconductance (high gain) achieved in common emitter amplifier with the superior high frequency response of common base amplifier. What is slew rate and what causes it. Why the output of the clipper is taken in d.c mode? 2) What is the condition for the proper transistor action? It is the fundamental building block of analog circuit. What is lower 3dB and upper 3dB cut off frequency? Analog Electronic Circuits Laboratory Viva Questions 6 Theory_Questions: 1. Electric Circuits Questions and Answers – The Inverting and Non-Inverting Amplifier Circuit « Prev. 4. What is the gain of inverting amplifier? The input junction is forward biased and output junction is reverse biased. Write the relationship between slew rate and maximum frequency of input signal that can be applied to produce output without distortion. What μA in μA 741 and LM in LM 324 indicates. List of RF interview questions and answers. Both the junctions should be forward biased. What is the equation for voltage gain? 2.What is 3dB bandwidth? Cascade amplifier is a Common base amplifier stage in cascade with common emitter stage. An amplifier may be defined as a device that increases the current, voltage or power of an input signal with the help of a transistor by furnishing the additional power from a separate source of supply. Question -2: What is FTTH? What is an amplifier? Question No. Reply. After the submission of your thesis, you will be asked to defend your research work in the “final viva voce “. Labels: Characteristics, physics viva questions, physics viva questions and answers, Transistor, Transistor Characteristics, viva, viva questions. VIVA QUESTIONS 1. What are the ideal characteristics of an op-amp. EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE. These top 10 RF interview questions and answers help engineers seeking RF job to crack the interview with ease.These questions are very useful as viva questions also. Refer Answer-1 . A tuned amplifier amplifies a certain range of frequencies (narrow band of frequencies) in the radio frequency region and rejects all other frequencies. Positive peak clipper means 7. Operational Amplifiers Questions and Answers Q1. 2. Reply. C) 2,3. power amplifier can increase the output power. Q2. Negative peak clipper means 8. If the emitter bias current increased in a differential amplifier then. Why CC amplifier is known as emitter follower? Answer: An operational amplifier, often called an op-amp, is a DC-coupled high-gain electronic voltage amplifier with differential inputs [1] and, usually, a single output. 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