Define an integrated circuit and classify them. Barun Singh says: at . Question -2: What is FTTH? 3. VIVA QUESTIONS 1. Write the relationship between slew rate and maximum frequency of input signal that can be applied to produce output without distortion. What is output offset voltage? A power amplifier is an electronic amplifier designed to increase the magnitude of power of a given input signal. Explain the operation of Wheatstone bridge. An operational amplifier, abbreviated as op-amp, is basically a multi-stage, very high gain, direct-coupled, negative feedback amplifier that uses voltage shunt feedback to provide a stabilized voltage gain. Electric Circuits Questions and Answers – The Inverting and Non-Inverting Amplifier Circuit « Prev. 01: What is modulation? Differential Amplifier Circuits _____ 11.0 Introduction Differential amplifier or diff-amp is a multi-transistor amplifier. An op-amp has a differential input. D) 1 only. 2. April 13th, 2018 - BMS Institute of Technology and Management Design test and evaluate BJT amplifiers in CE configuration Viva questions 46' 'Bjt Experiment Viva Questions kerkin de May 8th, 2018 - Read and Download Bjt Experiment Viva Questions Free Ebooks in PDF format BC SCIENCE 9 ANSWER KEY BODY SYSTEM WORD SEARCH ANSWERS BROADWAY ENGLISH' 5 / 6 'experiment 6 transistors as amplifiers … Reply. 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. 2. What μA in μA 741 and LM in LM 324 indicates. What is the range of resistance can be measured using Wheatstone bridge; What do u … The electronic circuits which perform the mathematical operations such as logarithm and anti-logarithm (exponential) with an amplification are called as Logarithmic amplifier and Anti-Logarithmic amplifier respectively.. 4. The voltage gain of an emitter follower is just a little less than one since the emitter voltage is constrained … EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE. Why the output of the clipper is taken in d.c mode? 2) What is the condition for the proper transistor action? Reply Delete. BJT AMPLIFIERS Questions :-1. It is designed to achieve wider bandwidth but dc gain approximately equal o that of common emitter amplifier. What is cut off frequency? What are the various terminals of op-amp 741 IC? After the submission of your thesis, you will be asked to defend your research work in the “final viva voce “. Viva Questions 1. Answer: [C] 2,3. What are the applications of clippers? experiments multi stage rc coupled, feed back amplifiers, power amplifiers, oscillators Multistage Amplifiers: 1. A) 1,2,3. Positive base and negative base clippers means 9. List of RF interview questions and answers. Why input impedance of op-amp is very high. Most of these circuit configurations require the op-amp output to be connected back to its input. A tuned amplifier amplifies a certain range of frequencies (narrow band of frequencies) in the radio frequency region and rejects all other frequencies. ECE 2-2 lab viva questions with answers. C) 2,3. Home/Labs/Viva Questions/FET FET 1.What are the comparisons and differences between a BJT and a JFET? The differential amplifier eliminates the need for an emitter bye-pass capacitor. Question No. 1. This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “Ideal Operational Amplifier”. Tell some characteristics of an ideal op-amp. is current amplification factor, a ratio of collector current to that of emitter or base????? BJT current controlled current device, Fet voltage controlled current device, in BJT current produced by holes and electrons, but in FET current produced due to any one only, 2.What is meant by a unipolar device? This chapter discusses about the Logarithmic amplifier and Anti-Logarithmic amplifier in detail. Reply. Why differential amplifier is used as an input stage of IC op-amp? The input junction is forward biased and output junction is reverse biased. 05: What is op-amp? pg September 13, 2015 at 7:08 PM. Why CC amplifier is known as emitter follower? VIVA QUESTIONS CLIPPERS: 1. i) Open loop gain, Aol = ∞ ii) Input impedance, Ri = ∞ iii) Output Impedance, Ro = 0 iv) Zero Offset, Vo = 0 v) Bandwidth, BW = ∞ 2. The following are some of the frequently asked questions for Viva on Operational Amplifier: What is an Op-Amp? State assumptions made for analyzing ideal op-amp. It is the fundamental building block of analog circuit. None of these. These questions are very useful as college viva questions also. What is its significance. Resources. Name two advantages of a Wheatstone bridge over an ordinary ohmmeter. The CE amplifier is one of the main configurations of a transistor amplifier. Next » This set of Electric Circuits Multiple Choice Questions & Answers (MCQs) focuses on “The Inverting and Non-Inverting Amplifier Circuit”. nice questions, but less questions. What is CMRR. A Class A power amplifier is one in which the output current flows for the entire cycle of the AC input supply. 3. It is virtually formed the differential amplifier of the input part of an operational amplifier. Answer -1: LED is used at transmit end and photo diode is used at receive end of fiber optic system. Analog Electronic Circuits Laboratory Viva Questions 6 Theory_Questions: 1. How to define the symbol of op-amp? What is an op-amp and what are its types? Question -1: Explain two main components which form fiber optic communication system. TUNED AMPLIFIERS . If the emitter bias current increased in a differential amplifier then. Electronic Circuits - Tuned Amplifiers - Important Short Questions and Answers: Tuned Amplifiers. 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. 3. 1. The following figure shows the circuit diagram for Class A Power amplifier. EDC Lab Viva Questions and Answers Electrical Lab Edit Question No. 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. More than three. The device that amplifies the amplitude of the input signal is called the amplifier. What is the equation for voltage gain? What are the various types of tuned amplifiers? What is slew rate and what causes it. Negative peak clipper means 8. What is the operating voltage range of IC 741? Viva Questions: 1.What is the necessity of cascading? Q2. 2.What is 3dB bandwidth? Labels: Characteristics, physics viva questions, physics viva questions and answers, Transistor, Transistor Characteristics, viva, viva questions. It is used to provide high voltage gain and high common mode rejection ratio. What is tuned amplifier? Positive peak clipper means 7. This connection from output to input is called “feedback”. 2. Operational amplifiers can be configured to work as a variety of functional circuits such as amplifiers, oscillators, voltage regulators, filters, rectifiers etc. CMRR increases 3. Ans: The common collector junction transistor amplifier is commonly called an emitter follower. Both the junctions should be forward biased. That is, it has two inputs of opposite polarity. Other names of clippers are-----. Which of the above statements are true. 26 comments: Unknown February 3, 2014 at 5:39 AM. State the ideal characteristics of Op-amp. What is an operational amplifier? 02: What is the op amp? Ans:In amplifiers cascading will increase the signal strength at recievers. 6. 2. 1. In this test, the learner will design as well as examine a fundamental NPN CE transistor amplifier. Operational Amplifiers Questions and Answers Q1. Voice frequency range is-----. some viva question and answer about amplifier 1. What is lower 3dB and upper 3dB cut off frequency? Defending a doctoral thesis and facing viva questions is a very critical part of every research scholar. The gain of the circuit will increase . Question No. Power Electronics Lab Viva Questions and Answers Electrical Lab Edit Question No. Diode cut in voltage value for si and Ge diodes? Nice collection of questions on Digital electronics.but this can be more elaborated by adding questions on Multiplexer , adder , subtracter and muffy loop.With an addition of objective question on digital electronics can make this article more effective. What is the gain of inverting amplifier? Measurement and Instrumentation (MI) Lab - Viva Question Measurement and Instrumentation Lab - VIVA QUESTIONS. The opamp in the Inverting circuit is in _____ a) Linear region b) Saturation c) Cut-off region d) Non-linear region View Answer. What are the ideal characteristics of an op-amp. 1) How many p-n junctions a transistor has? What is virtual ground? 1. Ans: 2. Refer Answer-1 . 2. Hence the complete signal present at the input is amplified at the output. power amplifier can increase the output power. Viva voce. Why is a JFET known as a Unipolar Device? What are some of it’s applications? Please note that these amplifiers fall under non-linear applications. inverting amplifier. It combines the high resistance, large Transconductance (high gain) achieved in common emitter amplifier with the superior high frequency response of common base amplifier. 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. 01: What is meant by SOA? 4. What is the gain of non-inverting amplifier? The input junction is reverse biased and output junction is forward biased. Home/ lab viva questions/ ECA LAB Analog electronic circuits lab viva questions with answers, aec lab viva questions, Electronic circuit analysis lab viva questions with answers, eca lab viva questions with answers. Defending your master thesis in front of the domain experts, co-scholars, and students is a quite interesting experience. 3. 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. Why can't we get more current and voltage gains using general amplifier? Viva Questions: 1. LED converts electrical signal to light form and photo diode does the reverse. This questionnaire will help one pass the interview for various RF positions such as RF test engineer, RF Design Engineer, RF system Engineer, RF lead etc. 5. Feedback. What is the main difference between general amplifier and power amplifier? LINEAR IC APPLICATIONS LAB DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING 5 EXPERIMENT.2 … Suppose, the learner has some knowledge on the theory of transistor amplifier like the use of AC equivalent circuits. Replies. The power of the input signal is increased to a level high enough to drive loads of output devices like speakers, headphones, RF transmitters etc. 2. What is an amplifier? 4. Answer: An operational amplifier (or an op-amp) is an integrated circuit (IC) that operates as a voltage amplifier. B) 1,2. 1. 7 Responses to Interview & Viva questions and answers on Digital Electronics. 6. 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