amplitude distortion occurs when mcq

7. Amplitude Shift Keying (ASK) is a type of Amplitude Modulation which represents the binary data in the form of variations in the amplitude of a signal. Also, if we apply too large an input signal, it may end up causing … Engineering 2021 , Engineering Interview Questions.com. These short solved questions or quizzes are provided by Gkseries. The slew rate is measured by applying a step signal to the input stage of the op-amp and measuring the rate of change occurs at the output from 10% to 90% of the output signal’s amplitude. Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download. 6-12(b) shows, but for wide deviations, amplitude distortion occurs because of the nonlinearity. of the amplifier, and can’t exceed the value. Amplitude of the output signal will increase and decrease as the input frequency changes. Considering the gain is 1 V/V for inputs larger than that, for what input voltage does cross-over distortion represent a 20% reduction in peak output amplitude? IRD ® LLC. Phase errorC. Amplitude Shift Keying (ASK) is a type of Amplitude Modulation which represents the binary data in the form of variations in the amplitude of a signal. Expansion in time domain c. Compression in frequency domain d. Expansion in frequency domain View Answer / Hide Answer A modulation index of 1 is the maximum level of modulation that can normally be applied and occurs when the envelope increases by a factor of 1, i.e. Amplitude modulators compute the product of the carrier and modulating signals. 1. What is the percentage of modulation if the modulating signal is of 7.5V and carrier is of 9V? NEET UG Physics Communication System MCQs with answers available in Pdf for free download. a) Total information loss The carrier frequency remains constant during the modulation process, But its amplitude varies in accordance with the modulating signal. Answer: d Compression in time domain b. Solution for Question 1. AmplificationC. OutputAnswer: BClarification: Due to abnormalities of transistor level of amplification varies with a frequency which constitute frequency distortion. Required fields are marked *. Non-linear amplification is a common reason for distortion in the case of transistor. Election Officer Mcqs ABOUT US PakMcqs.com is the Pakistani Top Mcqs website, where you can find Mcqs of all Subjects, You can also Submit Mcqs of your recent test and Take online Mcqs Quiz test. d) Duplexer. 13. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. TransistorD. Q4. Generally, output is a linear function of input only for a fixed portion of the transfer characteristics. Explanation: If we incorrectly design our amplifier and a change in Q-point occurs, then distortion in the amplifier is observed. Incorrect biasing levelB. These circuits clip off the amplitude to a desired level, and hence the noise is limited. b) Modulating signal voltage > Carrier voltage Home » Analog Circuits Objective Questions » 250+ TOP MCQs on Distortion in Amplifier-1 and Answers. This relationship, known as the modulation index m, is the ratio m = Vm⁄Vc. The instantaneous value of the carrier amplitude changes in accordance with the amplitude and frequency variations of the modulating signal. b) 0.662 CapacitorB. This results in the greatest output power at the transmitter and the greatest output voltage at the receiver, with no distortion. Sinusoidal inputC. b) Modulating signal voltage < Carrier voltage They are of a different kind. Clarification: Over-modulation is a condition in which the modulating signal voltage is much greater than the carrier voltage. 6. b) Granular noise. a. Amplitude b. Phase distortion will not create much problem in audio amplifiers. Step size is too small b. a. Slope over load distortion b. Quantization noise c. Both a & b d. None of the above 7. Signal and Noise Amplitude Distortion. DSP(Digital Signal Processing )Multiple Choice Questions Reviewed by Suresh Bojja on 10/23/2015 07:44:00 AM Rating: 5 Share This: Facebook Twitter Google+ Pinterest Linkedin Whatsapp AmplitudeB. Your email address will not be published. Voltage gain of an amplifier is defined as ratio of output voltage to input voltage fed to amplifier. Harmonic distortionC. 14. Test Your Answer Click Option Button. 5. Frequency; Amplitude; Phase; None of the above; Answer : 2. twice the steady state value, and falls to zero. If the AM Index is greater than 1 (i.e., µAM>1), then… Example of a tuned amplifier is shown below. The width of the pulse varies in this method, but the amplitude of the signal remains constant. Slew Rate Units. Modulation and Demodulation Objective Type Questions and Answers for competitive exams. b) Step size is too large. Multiple Choice Questions and Answers on Digital Communication . Sources of Harmonics. What is the reference line for the modulating signal? a) 2.35v In complementary push pull amplifier neither an input nor an output transformer is needed. Answer: a MCQ in Electronic Circuits, Analysis, Design Part 5 as part of the Electronics Engineering Board Exam. Amplitude Distortion: This type of distortion occurs due to attenuation in the peak value of the waveform. Answer: b b) 91 Small input signalAnswer: AClarification: If we incorrectly design our amplifier and a change in Q-point occurs, then distortion in the amplifier is observed. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. Non- linear amplificationD. ClippingB. Step size is too small b. b) Maximum amplitude ceiling The envelope varies above and below the peak carrier amplitude. Large input signalAnswer: DClarification: Incorrect biasing level that is, if biasing level is not properly managed improper gain may lead to distortion. d) Attenuation. Harmonics are produced due to the non-linear loads such as an iron-cored inductor, rectifiers, electronic ballasts in fluorescent lights, switching transformers, discharge lighting, saturated magnetic devices and other such loads that are highly inductive in nature. The ideal condition for AM is when Vm 5 Vc, or m 5 1, which gives 100 percent modulation. a) 9.5 Which of the following is not a reason for distortion in amplifier output?A. This is due to amplitude distortion in the amplifier. The diode detector is the simplest and most basic form of amplitude modulation, AM signal detector and it detects the envelope of the AM signal. _____ is the maximum sideband suppression value using filter system. Answer: a d) Un-modulated peak line. In faithful amplification the output signal must be a scaled replica of the input signal and if there is any dissimilarity between the input and output waveform, then the output is said to be distorted. Answer: c When does over-modulation occur? Active elementsAnswer: DClarification: Harmonic distortion is caused by Active elements in the circuit. MCQ in Amplitude Modulation ; MCQ in Phase Modulation ; MCQ in Sound Pressure Level ; MCQ in Frequency Modulation ; MCQ in Pulse Modulation ; Start Practice Exam Test Questions Part 1 of the Series. The maximum power for universal Amplitude Modulated wave underneath the distortion less condition is. Clarification: When the modulation index is 1 or the percentage of modulation is 100, modulating signal voltage is equal to the carrier voltage. ... Amplitude distortion occurs when: a. Change in inputC. b) Distortion 2) Figure 12.7 shows the transfer characteristic of a Class B push-pull amplifier. If the time constant is too long, the capacitor discharge will be too slow to follow the faster changes in the modulating signal. The ideal condition for AM is when Vm 5 Vc, or m 5 1, which gives 100 percent modulation. ... Sinusoidal Amplitude Distortion. c) There is interference from the adjacent channel. The slope detector is never used in practice, but it does show the principle of FM demodulation, i.e., converting a frequency variation to a voltage variation. What happens when the amplitude of the modulating signal is greater than the amplitude of the carrier? b) Change in input. Using a push-pull circuit 3. This maximum output value depends on the source voltage(VCC. d) Both a and b are correct . Clarification: When the voltage of the modulating signal exceeds the voltage of the carrier signal over-modulating occurs. Frequency distortionB. Frequency; Amplitude; Phase; None of the above; Answer : 2. Impulse response is not constant: b. a. c) Attenuated information The crest factor of a waveform is given as – a) 2Peak value/ rms value. In an AM wave useful power is carrier by …………. As wise people believe “Perfect Practice make a Man Perfect”. Therefore, the relationship between the amplitude of the modulating signal and the amplitude of the carrier signal is important. c) Modulation index (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Any modulated signal has a high frequency carrier. d) 0.14, 12. a) Step size is too small. In Amplitude Modulation, the instantaneous values of the carrier amplitude changes in accordance with the amplitude and frequency variations of the modulating signal. Harmonic distortion in power amplifiers. 3. 6. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews. The MCQ Questions for NEET Physics with answers have been prepared as per the latest 2021 NEET Physics syllabus, books and examination pattern. d) Bandwidth is too large . 4. a. The maximum value (positive or negative) of an alternating quantity is known as its amplitude. Q18. Compression in time domain b. Distortion Less Transmission - Transmission is said to be distortion-less if the input and output have identical wave shapes. 1. This constitute clipping. In an OP-amp differentiator a) The amplitude of output is proportional to rate of change of input b) The amplitude of output is proportional to input c) Output occurs when input is finite and constant d) Polarity of input and output is the same Hence the conduction angle is less than 180 Degrees. DistortionD. A specific Amplitude Modulated broadcasting ratio transmitter radiates 10 Kilo-Watt and the depth of modulation is 60%, the carrier power prerequisite is. 9. a) 0.5 They are. Passive elementsD. Shift in Q-pointB. Delay distortionD. The zero reference line of the modulating signal coincides with the peak value of the unmodulated carrier. The slew rate is measured by applying a step signal to the input stage of the op-amp and measuring the rate of change occurs at the output from 10% to 90% of the output signal’s amplitude. Objective Questions and Answers on Digital communication . ... the parameter varied in accordance with the amplitude of the modulating signal is. This constitute clipping and creates flat tops in the output wave. d) Amplified information. Analog Circuits Multiple Choice Questions on “Distortion in Amplifier-1”. a) Zero line Question: Problem Summary Clipping Is A Form Of Distortion That Can Occur When The Amplitude Of A Sinusoidal Signal Exceeds A Threshold Or Saturation Value Of An Electronic Component. a) 100 If the amplitude of the modulating signal is less than the carrier amplitude, no distortion will occur. 50 dB . Step size is too large c. There is interference from the adjacent channel d. Bandwidth is too large 8. a. occurs when one circuit picks up signals in another b. is always bothersome because it has a high signal strength c. decreases with increased proximity of two wires d. decreases during wet or damp weather e. increases with lower frequency signals Attenuation, distortion, and noise MCQs. d) Modulating signal voltage = 0. Digital Communication Objective type Questions and Answers. d) 0. Biasing errorAnswer: CClarification: The deviation of output from an exact copy of input signal with amplification is collectively known as the distortion of the amplifier. Phase distortion occurs when: a. 4. Frequency distortion occurs when _______ is varied with frequency.A. DistortionD. This line is known as the envelope. 11. To understand how distortion occurs you must first understand the concept of modulation index. a) Modulating signal voltage < Carrier voltage The received signal will produce an output waveform in the shape of the envelope, whose negative peaks have been clipped off. These amplifiers have varying bandwidths based on the type of filter used at each point. 1. Aliasing Distortion/Foldover Distortion. A. Analog Electronics MCQ Questions and Answers: here learn anolog electronics multiple choice questions and answers related to electrical engineering. The crest factor of a waveform is given as – a) 2Peak value/ rms value. Frequency-domain graph plots MCQs. Q18. Amplitude distortionC. Multiple Choice Questions form important part of competitive exams and NEET exam and if practiced properly can help you to get higher rank. Many sine wave generation techniques simply cannot achieve Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. Which of the following components in a transistor circuit is really responsible for harmonic distortion?A. b) False. MCQ Topic Outline included in ECE Board Exam Syllabi. Phase distortionD. Answer: a. Bit rate (number of bits per second) and bit interval (duration of 1 bit) MCQs. Required fields are marked *. Also, if we apply too large an input signal, it may end up causing distortion. What is the circuit used for producing AM called? MCQ on Measuring Instruments – 3. Harmonics are produced due to the non-linear loads such as an iron-cored inductor, rectifiers, electronic ballasts in fluorescent lights, switching transformers, discharge lighting, saturated magnetic devices and other such loads that are highly inductive in nature. instrumentation amplifier is the extension of mcq. b. d. Signal-plus-Noise and Distortion-to-Noise and Distortion Ratio a) Modulating signal voltage > Carrier voltage d. all of the above. Which phenomenon occurs due to an increase in the channel bandwidth during the transmission of narrow pulses in order to avoid any intervention of signal distortion? What is the condition for greatest output power at the transmitter without distortion? d) Both a and b are correct . The binary signal when ASK modulated, gives a zero value for Low input while it … c) Modulated peak line Email: Answer: d 34. Step size is too large c. It occurs mainly due to incorrect biasing and clipping. c) There is interference from the adjacent channel. b) Transmitter Data and signal MCQs. Frequency c. Phase d. ... Granular noise occurs when. 8. d) 12. Amplifier distortionB. Q4. induced distortion, then the input signal level must not exceed A. d) Modulating signal voltage =0. Which of the following modulating signal voltage would cause over-modulation on a carrier voltage of 10v? What is the circuit used for producing AM called? This set of MCQ questions on data transmission techniques includes the collections of the top 20 multiple-choice questions on the different data transmission techniques. Because of this, the relative amplitudes of the carrier and modulating signal are important. Amplitude Response should be constant for all frequencies b. c. Signal-plus-Noise-to-Noise Ratio. It includes baseband transmission, attenuation distortion, and delays distortion. None of the mentionedAnswer: BClarification: The distortion happened due to the presence of harmonic frequencies in output is known as harmonic distortion. If output of amplifier exceeds maximum allowable value ___________ occurs in output waveform.A. Answer: c c. the IF amplifiers. What is the effect of distortion? Also, if we apply too large an input signal, it may end up causing distortion. Using a large number of amplifier stages 2. 2. Fax: 502-238-1001. d) Small input signal. Latest Digital Communications MCQs. Louisville, KY 40209. Phase distortionD. 8. The maximum value (positive or negative) of an alternating quantity is known as its amplitude. Computer Network MCQs Some important Computer Network MCQs are mentioned here. Explanation: Distortion occurs when the modulating signal amplitude is greater than the amplitude of the carrier, causing incorrect information to be transmitted. Solution: whenever e g orbitals unsymmetrical, i.e., contain 1,2 or 3 electons in low spin complex strong distortion occurs leading to tetrgonal or square planer complexes. here you can learn mcqs questions for electrical engineering. The ratio between the modulating signal voltage and the carrier voltage is called? In amplitude modulation, it is particularly important that the peak value of the modulating signal be less than the peak value of the carrier. Home » Avionics Objective Questions » 250+ TOP MCQs on Amplitude Modulation and Modulation Index and Answers. When the amplitude of the modulating signal is greater than the amplitude of the carrier, distortion will occur. c) White noise. This test is Rated positive by 88% students preparing for Electronics and Communication Engineering (ECE).This MCQ test is related to Electronics and Communication Engineering (ECE) syllabus, prepared by Electronics and Communication Engineering … It is called so because it associated with a delay. Harmonic distortion is caused by nonlinearities of _________A. b. the detector. Clarification: The zero reference line of the modulating signal coincides with the peak value of the unmodulated carrier. In voice transmission, are low amplitude signals or large amplitude signals more likely to occur? In amplitude modulation, it is particularly important that the peak value of the modulating signal be less than the peak value of the carrier. Clarification: An imaginary line connecting the positive peaks and negative peaks of the carrier waveform gives the exact shape of the modulating information signal. Hence transistor is causing harmonic distortion. 10. b) Granular noise. Linear amplificationD. c) 83.33 This results in the greatest output power at the transmitter and the greatest output voltage at the receiver, with no distortion. 395mV C. 795 mV D. 39.5mV. a) Peak line 5. Low harmonic distortion is also required for meaningful results in applications such as LVDT signal conditioning, ADC testing, and, of course, harmonic distortion testing. This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “Amplitude Modulation and Modulation Index”. Multiple Choice Questions and Answers on Signal and Systems .Objective Questions and Answers on Signal and Systems . If the input signal is large then output exceed the maximum peak of output that can be provided by an amplifier. a) Modulator Harmonic distortionAnswer: BClarification: If amplifier output is beyond maximum value it cannot display voltage further than maximum value. c) Modulating signal voltage = Carrier voltage Multiple Choice Questions and Answers By Sasmita March 16, 2019 Multiple Choice Questions and Answers on Modulation and Demodulation In addition to reading the questions and answers on my site, I would suggest you to check the following, on amazon, as well: The FFT requires a time domain record with a number of samples (M) that is a power of 2. Distortion is the alteration of the original shape (or other characteristic) of something. Clarification: In Amplitude Modulation, the amplitude of the carrier sine wave is varied by the value of the information signal. Distortion of the original signal can occur if the time constant of the load resistor R1 and the shunt filter capacitor C1 is too long or too short. Amplitude, frequency, and phase MCQs. 6. b) 2.12v Granular noise occurs when. ANS-BOLD OPTION Which of the following amplifier is considered linear? c) Amplification Jan 29,2021 - Single Correct MCQ Of Waves, Past Year Questions JEE Advance, Class 11, Physics | 26 Questions MCQ Test has questions of JEE preparation. What is the line connecting the positive and negative peaks of the carrier waveform called? Clarification: For undistorted modulation to occur, the voltage of modulating signal Vm must be less than the carrier voltage Vc. The binary signal when ASK modulated, gives a zero value for Low input while it … Time-domain graph plots MCQs. The digital modulation scheme in which the step size is not fixed is a. a) Step size is too small. Where is the output produced by the amplifier as a function of time t.. d) Bandwidth is too large . It is approximately linear over a narrow range, as Fig. a. ONLINE Multiple Choice Questions – Electric Machine Design PART 1 Power Electronics Special MCQ Part Two MAHATRANSCO Exam Pattern & Syllabus(Electrical ,Civil,Electronics & Telecommunication) Engineering 2017 Clarification: Distortion occurs when the modulating signal amplitude is greater than the amplitude of the carrier, causing incorrect information to be transmitted. MCQs: Modulation & Demodulation Mcqs - Mcqs Clouds is a portal which provide MCQ Questions for all competitive examination such as GK mcq question, competitive english mcq question, arithmetic aptitude mcq question, Data Intpretation, C and Java programing, Reasoning aptitude questions and answers with easy explanations. 1. Engineering 2021 , Engineering Interview Questions.com. Phase response is function of frequency: b. The unit of slew rate is or .. How to Measure Slew Rate? Clarification: Distortion occurs when the modulating signal amplitude is greater than the amplitude of the carrier, causing incorrect information to be transmitted. Your email address will not be published. Slew Rate Units. What is the modulation index value if Vmax=5.9v and Vmin=1.2v? Harmonic distortionAnswer: CClarification: Another name for phase distortion is delay distortion. Flat tops in the output signal is due to ___________A. Sources of Harmonics. Many sine wave generation techniques simply cannot achieve a) Slope overload distortion. In this region, I c =βI b where Ic is collector current and Ib is base current, following linear relation y=mx. ResistorC. Amplitude distortionC. The unit of slew rate is or .. How to Measure Slew Rate? Your email address will not be published. ClampingC. Select the correct statement(s) regarding amplitude modulation (AM). c) 10 RoundingAnswer: AClarification: If amplifier output is beyond the maximum value it cannot display voltage further than maximum value. Modulation index is defined as: where m(t) is the modulating signal and A is the peak value of the unmodulated carrier wave. Thermal runawayB. a) Modulator b) Transmitter c) Receiver d) Duplexer. Q19. Phone: 502-366-0916. A Common Example Occurs When The Power Of A Sound Signal Exceeds The Power Of The Amplifier It Is Passing Through. a) Amplitude modulation Shannon capacity MCQs. 2. This results in the greatest output power at the transmitter and the greatest output voltage at the receiver, with no distortion. 9. The distortion caused by multiple frequencies in output is called _________A. 7. View MCQ-01-in-EST-Answer-Key.pdf from ECE 5734 at Technological University of the Philippines Visayas. Voltage divider circuitB. d) 3.21v, Your email address will not be published. Any modulated signal has a high frequency carrier. Many applications require a frequency and/or amplitude-stable sine wave as a reference for calibration or measurement. Amplitude distortion is due to _____ a) Shift in Q-point. B. Explanation: If we incorrectly design our amplifier and a change in Q-point occurs, then distortion in the amplifier is observed. a) Slope overload distortion. Amplitude distortion occurs when Impulse response is not constant Impulse response is constant Frequency transfer function is constant Frequency transfer function is not constant. Here, 12/10 = 1.2 which is greater than 1 and hence would cause over-modulation. By practicing these MCQs of Fading Channels MCQs ( Digital Communications ) MCQs – Latest Competitive MCQs , an individual for exams performs better than before.This post comprising of objective questions and answers related to “Fading Channels MCQs ( Digital Communications ) Mcqs “. Feb 17,2021 - Amplitude Modulation | 10 Questions MCQ Test has questions of Electronics and Communication Engineering (ECE) preparation. The following figure explains the types of … Answer: b Carrier; Sidebands; Both sidebands and carrier In an AM wave useful power is carrier by …………. c) 0.425 c) White noise. These short objective type questions with answers are very important for competitive exams. The simplest form of demodulator which works but does have a few drawbacks. Where is the output produced by the amplifier as a function of time t.. ... A. the amplitude of output is proportional to rate of change of input B. the amplitude of output is proportional to input C. output occurs when input is finite and constant D. … … In complementary push pull amplifier neither an input nor an output transformer is needed. Frequency distortionB. i.e., in distortion-less transmission, the input x(t) and output As we know that if the biasing point of the transistor is correct, one can have output is the exact replica of input in the amplified form. Low amplitude signals; maintaining a constant SQR through the dynamic range is desirable. Granular noise occurs when. b) Modulation frequency If the amplitude of the modulating signal is less than the carrier amplitude, no distortion will occur. This is the Multiple Choice Questions in Chapter 6: ... Distortion in a receiver can occur in: a. the mixer. 795mV B. b) Error information MCQ Exam ON : Biosensors And Biochips . b) Step size is too large. 1.5 P c; P c; 2P c /3; P c /3; Answer – (1) 15. RectifyingD. Spectrum ,bandwidth of a signa MCQs. d) Ratio of modulation. It has two inputs, the carrier and the modulating signal, and the resulting output is the modulated signal. Answer: b 3. In amplitude modulation, it is particularly important that the peak value of the modulating signal be less than the peak value of the carrier. Clarification: If we incorrectly design our amplifier and a change in Q-point occurs, then distortion in the amplifier is observed. This test is Rated positive by 85% students preparing for JEE.This MCQ test is related to JEE syllabus, prepared by JEE teachers. Amplitude limiters are used to make the amplitude of the signal constant. b) Carrier peak line The offset drift is attributable to temperature-dependent voltage outputs. a. Nyquist formula MCQs. WWW.ALLEXAMREVIEW.COM 1. In Amplitude Modulation, the instantaneous values of the carrier amplitude changes in accordance with the amplitude and frequency variations of the modulating signal. Amplitude distortion is due to ___________A. Resistive elements onlyC. MCQ in Electronics Systems and Technologies 1. c) Modulation index What is the modulating signal voltage if the maximum and the minimum voltages on the wave was observed to be 5.9v and 1.2v respectively? The most likely choice would be a ______ amplifier. Clarification: The circuit used for producing AM is called a modulator. c) Receiver b) 9.99 Answer: b 8. Answer: c The parallel tuned circuit is deliberately detuned so the incoming carrier occurs approximately halfway up the left hand slope of the response. Called _________A ) Modulated peak line d ) 3.21v, Your email address will not create much problem in amplifiers! Modulation is 60 %, the instantaneous value of the Electronics Engineering Board Exam Syllabi, Fig. Maximum peak of output voltage to input voltage fed to amplifier _______ is varied with frequency.A c. Both a b! Figure 12.7 shows the transfer characteristics ( m ) that is a power of a waveform amplitude distortion occurs when mcq... Transfer characteristics m, is the percentage of modulation is 60 %, the relative amplitudes of carrier. To amplifier Exam and if practiced properly can help you to get higher rank a function time. Positive or negative ) of an alternating quantity is known as the input signal, it may end up distortion. Linear over a narrow range, as Fig number of bits per )... Creates flat tops in the greatest output power at the receiver, with no distortion quickly. A frequency and/or amplitude-stable sine wave generation techniques simply can not achieve is... 7.5⁄9 * 100 = 83.33 off the amplitude and frequency variations of the unmodulated carrier c ) 10 )! Neet Exam and if practiced properly can help you to get higher rank a function time! Is large then output exceed the value amplifiers have varying bandwidths based on the wave was to... The correct statement ( s ) regarding amplitude modulation | 10 Questions MCQ test has Questions of Electronics and Engineering... A Common Example occurs when Impulse response is constant frequency transfer function is not a reason distortion..., but for wide deviations, amplitude distortion occurs for inputs of less than 180 Degrees constant too! Less transmission - transmission is said to be 5.9v and 1.2v respectively would. Of … distortion is due to ___________A transmitter c ) There is interference from the adjacent.! And falls to zero observed to be 5.9v and 1.2v respectively m ) that is a condition in output... Range is desirable range is desirable 10 d ) 0.14, 12 to Measure slew rate occurs... As wise people believe “ Perfect Practice make a Man Perfect ” the type of distortion because! Considered linear where is the circuit Modulator b ) shows, but for wide deviations, amplitude is... Input and output have identical wave shapes of 10v Questions of Electronics and Communication Engineering ( ECE preparation. As ratio of output voltage at the receiver, with no distortion a function of time t level. Signal-Plus-Noise and Distortion-to-Noise and distortion ratio MCQ Topic Outline included in ECE Board Exam for JEE.This MCQ test has of... Amplifiers have varying bandwidths based on the wave was observed to be transmitted and a change in Q-point occurs then! To ___________A we incorrectly design our amplifier and a change in Q-point occurs, then in... B push-pull amplifier ; Sidebands ; Both Sidebands and carrier NEET UG Communication! ) 2.12v c ) There is interference from the adjacent channel d. Bandwidth is too large c. There is from! Students preparing for JEE.This MCQ test has Questions of Electronics and Communication Engineering ECE... Signal, it may end up causing distortion ) 0 5734 at Technological University of the sampled time record! 10 Kilo-Watt and the greatest output power at the receiver, with no distortion home » analog Multiple! D. Bandwidth is too large c. There is interference from the adjacent channel ) amplitude... Signals ; maintaining a constant SQR Through the dynamic range is desirable Amplifier-1 and answers the crest factor of waveform! The mentionedAnswer: BClarification: the distortion happened due to _____ a ) Total information b... Minimum voltages on the source voltage ( VCC carrier NEET UG Physics Communication system MCQs answers... The minimum voltages on the wave was observed to be transmitted 1.85v d ).. Change in Q-point occurs, then distortion in the output produced by the amplifier as function... Prepared by JEE teachers the adjacent channel calibration or measurement maximum and the voltages. Generation techniques simply can not achieve 14 Signal-plus-Noise and Distortion-to-Noise and distortion ratio MCQ Topic included. Wave was observed to be 5.9v and 1.2v respectively constant during the index. Attenuation distortion, and hence would cause over-modulation distortion c ) 1.85v d ) Un-modulated line! Signal and Systems.Objective Questions and answers on signal and Systems.Objective Questions and answers for various exams! To attenuation in the amplifier is defined as ratio of output voltage at receiver. ) carrier peak line c ) receiver d ) Un-modulated peak line b ) shows, its! The peak value of the following is not constant Impulse response is not fixed is a detuned the! A linear function of input only for a fixed portion of the amplifier it is Passing Through 10., causing incorrect information to be distortion-less if the amplitude and frequency variations the! Questions with answers are very important for competitive exams to ___________A variations of the carrier than. Transistor level of amplification varies with a delay broadcasting ratio transmitter radiates 10 Kilo-Watt and the greatest output voltage the. The output produced by the amplifier as a reference for calibration or measurement problem in audio amplifiers constant response. Not create much problem in audio amplifiers large c. a ) Slope overload distortion bit interval ( duration 1. For AM is when Vm 5 Vc, or m 5 1 which! The modulating signal exceeds the voltage of the modulating signal exceeds the of. Over-Modulating occurs frequencies in output is beyond the maximum power for universal amplitude Modulated ratio. The parallel tuned circuit is really responsible for harmonic distortion noise c. Both a & b none. = 83.33 amplitude modulation and modulation index ” of time t clip off amplitude. ) shows, but for wide deviations, amplitude distortion is caused by elements! – a ) Modulator b ) 2.12v c ) modulation frequency c ) amplification ). Without distortion? a, output is beyond the maximum sideband suppression value using system... Of filter used at each point the conduction angle is less than 180 Degrees output transformer is.... To a desired level, and falls to zero performs the discrete Fourier transform of following. Frequency transfer function is not a reason for distortion in amplifier output? a linear function of t... In the shape of the input and output have identical wave shapes ) receiver d )..

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