Common Collector Amplifier Question & Answers October 20, 2022 By WatElectronics This article lists 30 Common Collector Amplifier MCQs for engineering students. All the Common Collector Amplifier Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Common Collector Amplifier. In emitter follower or common collector amplifiers, the emitter terminal serves as the output and the base terminal serves as an input. The collector is common in emitter-follower circuits, and these circuits are typically used as a voltage buffer. In common collector amplifiers, the voltage gain is less than one and the current gain is greater than one, hence the common collector doesn’t do any voltage amplification. The input and output in phase, high power gain, low output, and high input impedances are the characteristics of common collector amplifiers. The features of common collector amplifiers are moderate/high input impedance, low output impedance, low (unity) voltage gain, and high current gain. The output in the common collector amplifiers is measured at the emitter terminal. The common collector amplifiers are used in wideband buffer amplifiers to drive low imped/Xc loads, used as switching circuits, and also used in digital circuits with logic gates. The other name of common collector amplifiers is also called voltage follower or emitter follower. 1). In which one of the following configuration voltage gains is greater than one? Common emitter Common collector Common base None of the above None Hint 2). In which one of the following configurations the input resistance is high? Common emitter Common collector Common base None of the above None Hint 3). In emitter follower or common collector, the output resistance is ________________? High Low Very high Moderate None Hint 4). In which one of the following amplifiers, the phase shift is zero degrees? Common emitter Common collector Common base Both b and c None Hint 5). The leakage current is very large in _________ configurations? Common emitter Common collector Common base Both a and b None Hint 6). Which one of the following configurations used for impedance matching? Common emitter Common collector Common base None of the above None Hint 7). The input voltage in common emitter amplifiers applied between _________________? Emitter and base Base and emitter Base and collector None of the above None Hint 8). The voltage gain is about 150 in _______________ amplifier configuration? Common emitter Common collector Common base None of the above None Hint 9). The figure shown below is a circuit diagram of ________________ amplifier? Common emitter Common collector Common base None of the above None Hint 10). In which one of the following configurations, the output resistance is moderate to high? Common emitter Common collector Common base None of the above None Hint Common Collector Amplifier MCQ for Quiz 11). In which one of the following amplifiers, the power gain is low? Common emitter Common collector Common base Both b and c None Hint 12). The voltage gain is about 500 in _______________ amplifier configuration? Common emitter Common collector Common base None of the above None Hint 13). In which one of the following amplifiers, the input impedance is 1k? Common emitter Common collector Common base None of the above None Hint 14). The output impedance is 50k in ________________ amplifier configuration? Common emitter Common collector Common base None of the above None Hint 15). Which one of the following is very high in common collector amplifiers? Current gain Input impedance Both a and b None of the above None Hint 16). When output current is divided by input current then that is a formula of ______________? Current gain Power gain Voltage gain None of the above None Hint 17). The figure shown below is a curve of ________________ amplifier? Common emitter Common collector Common base None of the above None Hint 18). The (Vg-Vi)/Rg is the equation to calculate________ parameter? Current gain Power gain Voltage gain Input current None Hint 19). The input voltage in common base amplifiers applied between _________? Emitter and base Base and emitter Base and collector None of the above None Hint 20). Which one of the following configurations used for high frequency applications? Common emitter Common collector Common base None of the above None Hint Common Collector Amplifier MCQ for Exams 21). In which one of the following amplifiers the input impedance is 50 ohms? Common emitter Common collector Common base None of the above None Hint 22). Which one of the following is low in common collector amplifiers? Output impedance Power gain Both a and b None of the above None Hint 23). In which one of the following configurations, the output impedance is 300 ohms? Common emitter Common collector Common base None of the above None Hint 24). In which one of the following amplifiers the input impedance is 300k? Common emitter Common collector Common base None of the above None Hint 25). Which one of the following configurations used for audio frequency applications? Common emitter Common collector Common base None of the above None Hint 26). The output impedance is 1 Meg in ________________ amplifier configuration? Common emitter Common collector Common base None of the above None Hint 27). When output voltage is divided by input voltage then that is a formula of ______________? Current gain Power gain Voltage gain None of the above None Hint 28). The figure shown below is a curve of ________________ amplifier? Common emitter Common collector Common base None of the above None Hint 29). In which one of the following configurations, the voltage gain is less than unity? Common emitter Common collector Common base None of the above None Hint 30). The input voltage in common collector amplifiers applied between _________________? Emitter and base Base and emitter Base and collector None of the above None Hint Read more about Amplifiers For More MCQs MOSFET Amplifier Question & Answers Cascade Amplifier Question & Answers DC Amplifier Question & Answers Tuned Amplifier Question & Answers Instrumentation Amplifier Question & Answers Differential Amplifier Question & Answers Class D Amplifier Question & Answers Power Amplifier Question & Answers Low Noise Amplifier Question & Answers Cascode Amplifier Question & Answers Positive Feedback Amplifier Question & Answers Multistage Amplifier Question & Answers Common Base Amplifier Question & Answers Please fill in the comment box below. Time's up
