What is the disadvantage of a class B push-pull amplifier?(a) The efficiency reduces(b) The figure of merit increases(c) The cross-over distortion occurs(d) The Q-power dissipation is very largeThis question was addressed to me in an international level competition.I'm obligated to ask this question of Push-Pull Class B Amplifier topic in portion Power Amplifier of Analog Circuits

What is the disadvantage of a class B push-pull amplifier?(a) The effi

1.	What is the disadvantage of a class B push-pull amplifier?(a) The efficiency reduces(b) The figure of merit increases(c) The cross-over distortion occurs(d) The Q-power dissipation is very largeThis question was addressed to me in an international level competition.I'm obligated to ask this question of Push-Pull Class B Amplifier topic in portion Power Amplifier of Analog Circuits
Answer» CORRECT answer is (c) The cross-over DISTORTION occurs To elaborate: A class B amplifier helps increase efficiency, and the figure of merit reduces. The q power dissipation reduces and cross over distortion INCREASES. Due to two transistors, when ONE transistor turns off the other does not begin conduction immediately, HENCE output current is zero for a short interval.

Discussion

No Comment Found

Related InterviewSolutions

The use of amplifier in a circuit is to _____________ for input signal.(a) Provide a phase shift(b) Provide strength(c) Provide frequency enhancement(d) Make circuit compatibleThe question was asked in homework.Asked question is from Features of Power Amplifier topic in chapter Power Amplifier of Analog Circuits
Unit of power rating of a transistor is expressed in ___________(a) Watts(b) KWh(c) W/s(d) WhThe question was asked during a job interview.I need to ask this question from Features of Power Amplifier in section Power Amplifier of Analog Circuits
Power amplifier directly amplifies ___________(a) Voltage of signal(b) Current of the signal(c) Power of the signal(d) All of the mentionedI have been asked this question at a job interview.I'm obligated to ask this question of Features of Power Amplifier topic in portion Power Amplifier of Analog Circuits
The unwanted characteristics of amplifier output apart from the desired output is collectively termed as ___________(a) Inefficiency(b) Damage(c) Fault(d) DistortionI have been asked this question during an interview.Question is from Features of Power Amplifier topic in section Power Amplifier of Analog Circuits
Which device was used for the amplification of audio signals before the invention of power amplifiers?(a) Diode(b) Op-amp(c) Vacuum tubes(d) SCRI had been asked this question during an interview for a job.I want to ask this question from Features of Power Amplifier topic in section Power Amplifier of Analog Circuits
Input stage of power amplifier is also called ___________(a) First op(b) Beginning stage(c) Front end(d) Normal stageI got this question in homework.Query is from Features of Power Amplifier in section Power Amplifier of Analog Circuits
For a perfect power amplifier output power rating will be ________ if the output impedance is halved.(a) Halved(b) Squared(c) Doubled(d) Square rootedI got this question by my college director while I was bunking the class.This question is from Features of Power Amplifier in portion Power Amplifier of Analog Circuits
Transistor in power amplifier is ___________(a) An active device(b) A passive device(c) A op-amp(d) A voltage generating deviceThe question was posed to me by my college director while I was bunking the class.Question is from Features of Power Amplifier in chapter Power Amplifier of Analog Circuits
Which of the following audio speaker will be hard to be driven by a power amplifier?(a) 4ohm(b) 8ohm(c) 12ohm(d) 2ohmThis question was posed to me in final exam.This is a very interesting question from Features of Power Amplifier in chapter Power Amplifier of Analog Circuits
The power rating of the amplifier is 100watts then the transistor can only operate at ___________(a) Power higher than 100w(b) Power lower than 100w(c) Power near to 100w(d) Power lower than 200WThe question was posed to me during an internship interview.My question is based upon Features of Power Amplifier topic in portion Power Amplifier of Analog Circuits

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment