100 Top Analog Electronics Questions And Answers Pdf Analog Electronics Questions 1l2r66
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ANALOG ELECTRONICS Questions and Answers : 1. The early effect in a bipolar junction transistor is caused by A. fast turnon B.fast turnoff C. large collectorbase reverse bias D. large emitterbase forward bias 2. MOSFET can be used as a A. current controlled capacitor B. voltage controlled capacitor C. current controlled inductor D. voltage controlled inductors 3. Thermal runaway is not possible in FET because as the temperature of FET increases A. the mobility decreases B. the transconductance increases C. the drain current increases D. none of the above 4. A source follower using an FET usually has a voltage gain which is A. greater than +100 B. slightly less than unity but positive C. exactly unity but negative D. about 10 5. A differential amplifier has a differential gain of 20,000 . CMRR=80 dB. The common mode http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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gain is given by A. 2 B. 1 C. 1/2 D. 0 6. The approximate input impedance of the OPAMP circuit which has Ri=10k,Rf=100k,RL=10k A. ∞ B.120k C.110k D.10k 7. An OPAMP has a slew rate of 5 V/µ S .The largest sine wave O/P voltage possible at a frequency of 1MHZ is A. 10 volts B. 5 volts C. 5/ volts D.5/2 volts 8. A change in the value of the emitter resistance Re in a differential amplifier A. affects the difference mode gain Ad B. affects the common mode gain Ac C.affects both Ad and Ac D. does not effect either Ad and Ac OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 9. A differential amplifier is invariably used in the i/p stage of all OPAMPs.This is dome basically to provide the OPAMPs with a very high A.CMRR B.bandwidth C. slew rate D.openloop gain 10. The effective channel length of a MOSFET in a saturation decreases with increase in A. gate voltage B.drain voltage C.source voltage D.body voltage 11. Which of the following is not associated with a pn junction A. junction capacitance B.charge storage capacitance C.depletion capacitance D.channel length modulation 12. In a pn junction diode under reverse bias , the magnitude of electric field is maximum at A. the edge of the depletion region on the pside B. the edge of the depletion region on the nside C. the pn junction D. the center of the depletion region on the nside 13. An n channel JFET has IDSS=2mA,and Vp=4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=2v is A.0.25 B.0.5 http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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C.0.75 D.1 14. In a common emitter, unbyed resister provides A.voltage shunt B.current series C.negative voltage D.positive current 15. A constant current signal across a parallel RLC circuits gives an o/p of 1.4v at the signal frequency of 3.89KHZ and 4.1KHZ .At the frequency of 4KHZ,the o/p voltage will be A.1 v B. 2v C.1.4v D.2.8v 16. Class AB operation is often used in power large signal) amplifiers in order to A. get maximum efficiency B.remove even harmonics C. overcome a crossover distortion D.reducing collector dissipation OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 17. The bandwidth of an RF tuned amplifier is dependent on A. Q –factor of the tuned o/p circuit B. Q –factor of the tuned i/p circuit C. Quiescent operating point D. Qfactor of the o/p and i/p circuits as well as quiescent operating point 18. If =0.98 ,Ico=6µA and Iβ=100µA for a transistor,then the value of Ic will be A.2.3mA B.3.2mA C.4.6 mA D.5.2mA 19.The MOSFET switch in its onstate may be considered equivalent to A.resistor B.inductor C.capacitor D.battery 20. Most of the linear ICs are based on the twotransistor differential amplifier because of its A. input voltage dependent linear transfer characteristic B. high voltage gain C. high input resistance D. high CMRR 21. Negative in an amplifier A. Reduces gain B. Increase frequency &phase distortion C. Reduces bandwidth D. Increases noise 22. A dc power supply has noload voltage of 30v,and a fullload voltage of 25v at fullload current of 1A.Its output resistance & load regulation ,respectively are http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
A. 5 Ω & 20 % B. 25 Ω & 20 % C. 5 Ω & 16.7 % D. 25 Ω & 16.7 % 23. The current gain of a bipolar transistor drops at high frequencies because of A. Transistor capacitances B. High current effects in the base C. Parasitic inductive elements D. The early effect OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 24. The ideal OPAMP has the following characteristics. A. Ri=∞ ,A=∞ ,R0=0 B. Ri=0 ,A=∞ ,R0=0 C. Ri=∞ ,A=∞ ,R0=∞ D. Ri=0 ,A=∞ ,R0=∞ 25. An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are A. fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz. B. fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz C. fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz D. fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz
ANALOG ELECTRONICS Questions and Answers pdf :: 26. A 741type OPAMP has a gainbandwidth product of 1MHz.A noninverting amplifier using this opamp & having a voltage gain of 20db will exhibit 3db bandwidth of A. 50 KHz B. 100KHz C. 1000/17 KHz D. 1000/7.07 KHz 27.An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slewrate induced distortion, then the input signal level must not exceed A. 795mV B. 395mV C. 795 mV D. 39.5mV 28. In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db &2db respectively, then its common mode rejection ratio is A.23dB B.25dB C. 46dB D. 50dB 29. Generally, the gain of a transistor amplifier falls at high frequencies due to the A. Internal Capacitance of the device B. Coupling capacitor at the input C. Skin effect D. Coupling capacitor at the output
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
30. An amplifier without has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the currentshunt negative amplifier using the above amplifier with a feedbacik factor of 0.2 is A. 1/11KΩ B. 1/5KΩ C. 5KΩ D. 11KΩ OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 31. The action of JFET in its equivalent circuit can best be represented as a A. Current controlled Current source B. Current controlled voltage source C. Voltage controlled voltage source D. voltage controlled current source 32. Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250 ,are cascaded.The open circuit voltage gain of combined amplifier is A. 49dB B. 51dB C. 98dB D. 102dB 33. An ideal OPAMP is an ideal A. Current controlled Current source B. Current controlled voltage source C. Voltage controlled voltage source D. voltage controlled current source 34. In a fullwave rectifier using two ideal diodes,Vdc & Vm are the dc & peak values of the voltage respectively across a resistive load. If PIV is the peak inverse voltage of the diode, then the appropriate relationships for this rectifier is. A. Vdc = Vm/π, PIV=2Vm B. Vdc = 2Vm/π, PIV=2vm C. Vdc = 2Vm/π, PIV=Vm D. Vdc = Vm/π, PIV=Vm 35. The cascade amplifier is a multistage configuration of A. CCCB . B. CECB C. CBCC D. CECC 36. The current gain of a BJT is A. gm r0 B. gm / r0 C. gm rπ D. gm /rπ 37. The most commonly used amplifier in sample & hold circuits is A. A unity gain noninverting amplifier B. A unity gain inverting amplifier C. An inverting amplifier with a gain of 10 D. An inverting amplifiers with a gain of 100 OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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38. To prevent a DC return between source and load, it is necessary to use A. resistor between source and load B. inductor between source and load C. capacitor between source and load D. either A. or B. 39. Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in A. Only the temperature B. only the β of the transistor C. Both Temperature & β D. None of the above 40. Voltage Series also called seriesshunt ) results in A. Increase in both input & output impedances B. Decreases in both input & output impedances C. Increase in input impedance & decreases in output impedance D. Decrease in input impedance & increase in output impedance 41. The encapsulation of transistor is necessary for A. preventing radio interference B. preventing photoemission effects C. avoiding loss of free electrons D. mechanical ruggedness Answer: D 42. In a transistor leakage current mainly depends on A. doping of base B. size of emitter C. rating of transistor D. temperature Answer: D 43. In a CB amplifier the maximum efficiency could be A. 99% B. 85% C. 50% D. 25% Answer: D 44. When a transistor is connected in common emitter mode, it with have A. negligible input resistance and high output resistance B. high input resistance and low output resistance C. medium input resistance and high output resistance D. low input resistance as well as output resistance Answer: C
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
45. In all base driver amplifiers A. ac collector voltage is 180° out of phase with ac base voltage B. ac emitter voltage is 180° out of phase with ac base voltage C. ac collector voltage is in phase with ac base voltage D. none of the above Answer: A 46. The horizontal intercept of dc load line is the same as ideal A. cut off point B. saturation point C. operating point D. quasi saturation point Answer: A 47. In deriving ac equivalent circuit for an amplifier circuit we short circuit A. all resistors B. all transistors C. all inductors D. all capacitors Answer: D 48. Which of the following statements is false? A. Push pull signals are equal and opposite in phase B. Class AB operation cannot be used for a push pull audio power output phase C. A push pull output transformer has a centretapped primary D. All of the above Answer: B 49. Which of the following amplifier circuit using junction transistor has the best gain? A. Common base B. Common emitter C. Common collector D. All have the same gain Answer: B 50. In an opamp 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 Answer: A Answers: 1. C 2. B 3. A 4. A 5. A 6. D 7. D 8. B 9. A 10. B 11. D 12. C 13. B 14. C 15. B 16. C 17. A 18. D 19. C 20. D 21. A 22. B 23. A 24. A 25. B 26. B 27. C 28. C 29. A 30. A 31. D 32. C 33. B http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
34. B 35. B 36. C 37. B 38. C 39. C 40. C. ANALOG ELECTRONICS Questions and Answers pdf free :: I WILL UPDATE REMAINING QUESTIONS AS SOON AS EARLY —–> KEEP IN TOUCH
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3 Responses to 100 TOP ANALOG ELECTRONICS Questions and Answers pdf premila kumari says: June 25, 2016 at 9:52 am
Its very help full for me thank u sir Reply
kulkdeep says: June 24, 2016 at 4:01 am
hi Reply
premila kumari says: June 25, 2016 at 9:52 am
Hi sir Reply
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
Engineering Interview Questions.com Engineering interview questions,multiple choice questions,objective type questions,seminor topics,lab viva questions and answers ,online quiz test pdf free for freshers.
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Home » ANALOG ELECTRONICS Questions » 100 TOP ANALOG ELECTRONICS Questions and Answers pdf
100 TOP ANALOG ELECTRONICS Questions and Answers pdf
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► Book PDF ► Interview Questions PDF ► Questions and Answers
ANALOG ELECTRONICS Questions and Answers : 1. The early effect in a bipolar junction transistor is caused by A. fast turnon B.fast turnoff C. large collectorbase reverse bias D. large emitterbase forward bias 2. MOSFET can be used as a A. current controlled capacitor B. voltage controlled capacitor C. current controlled inductor D. voltage controlled inductors 3. Thermal runaway is not possible in FET because as the temperature of FET increases A. the mobility decreases B. the transconductance increases C. the drain current increases D. none of the above 4. A source follower using an FET usually has a voltage gain which is A. greater than +100 B. slightly less than unity but positive C. exactly unity but negative D. about 10 5. A differential amplifier has a differential gain of 20,000 . CMRR=80 dB. The common mode http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
1/8
04/07/2016
100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
gain is given by A. 2 B. 1 C. 1/2 D. 0 6. The approximate input impedance of the OPAMP circuit which has Ri=10k,Rf=100k,RL=10k A. ∞ B.120k C.110k D.10k 7. An OPAMP has a slew rate of 5 V/µ S .The largest sine wave O/P voltage possible at a frequency of 1MHZ is A. 10 volts B. 5 volts C. 5/ volts D.5/2 volts 8. A change in the value of the emitter resistance Re in a differential amplifier A. affects the difference mode gain Ad B. affects the common mode gain Ac C.affects both Ad and Ac D. does not effect either Ad and Ac OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 9. A differential amplifier is invariably used in the i/p stage of all OPAMPs.This is dome basically to provide the OPAMPs with a very high A.CMRR B.bandwidth C. slew rate D.openloop gain 10. The effective channel length of a MOSFET in a saturation decreases with increase in A. gate voltage B.drain voltage C.source voltage D.body voltage 11. Which of the following is not associated with a pn junction A. junction capacitance B.charge storage capacitance C.depletion capacitance D.channel length modulation 12. In a pn junction diode under reverse bias , the magnitude of electric field is maximum at A. the edge of the depletion region on the pside B. the edge of the depletion region on the nside C. the pn junction D. the center of the depletion region on the nside 13. An n channel JFET has IDSS=2mA,and Vp=4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=2v is A.0.25 B.0.5 http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
C.0.75 D.1 14. In a common emitter, unbyed resister provides A.voltage shunt B.current series C.negative voltage D.positive current 15. A constant current signal across a parallel RLC circuits gives an o/p of 1.4v at the signal frequency of 3.89KHZ and 4.1KHZ .At the frequency of 4KHZ,the o/p voltage will be A.1 v B. 2v C.1.4v D.2.8v 16. Class AB operation is often used in power large signal) amplifiers in order to A. get maximum efficiency B.remove even harmonics C. overcome a crossover distortion D.reducing collector dissipation OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 17. The bandwidth of an RF tuned amplifier is dependent on A. Q –factor of the tuned o/p circuit B. Q –factor of the tuned i/p circuit C. Quiescent operating point D. Qfactor of the o/p and i/p circuits as well as quiescent operating point 18. If =0.98 ,Ico=6µA and Iβ=100µA for a transistor,then the value of Ic will be A.2.3mA B.3.2mA C.4.6 mA D.5.2mA 19.The MOSFET switch in its onstate may be considered equivalent to A.resistor B.inductor C.capacitor D.battery 20. Most of the linear ICs are based on the twotransistor differential amplifier because of its A. input voltage dependent linear transfer characteristic B. high voltage gain C. high input resistance D. high CMRR 21. Negative in an amplifier A. Reduces gain B. Increase frequency &phase distortion C. Reduces bandwidth D. Increases noise 22. A dc power supply has noload voltage of 30v,and a fullload voltage of 25v at fullload current of 1A.Its output resistance & load regulation ,respectively are http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
A. 5 Ω & 20 % B. 25 Ω & 20 % C. 5 Ω & 16.7 % D. 25 Ω & 16.7 % 23. The current gain of a bipolar transistor drops at high frequencies because of A. Transistor capacitances B. High current effects in the base C. Parasitic inductive elements D. The early effect OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 24. The ideal OPAMP has the following characteristics. A. Ri=∞ ,A=∞ ,R0=0 B. Ri=0 ,A=∞ ,R0=0 C. Ri=∞ ,A=∞ ,R0=∞ D. Ri=0 ,A=∞ ,R0=∞ 25. An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are A. fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz. B. fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz C. fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz D. fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz
ANALOG ELECTRONICS Questions and Answers pdf :: 26. A 741type OPAMP has a gainbandwidth product of 1MHz.A noninverting amplifier using this opamp & having a voltage gain of 20db will exhibit 3db bandwidth of A. 50 KHz B. 100KHz C. 1000/17 KHz D. 1000/7.07 KHz 27.An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slewrate induced distortion, then the input signal level must not exceed A. 795mV B. 395mV C. 795 mV D. 39.5mV 28. In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db &2db respectively, then its common mode rejection ratio is A.23dB B.25dB C. 46dB D. 50dB 29. Generally, the gain of a transistor amplifier falls at high frequencies due to the A. Internal Capacitance of the device B. Coupling capacitor at the input C. Skin effect D. Coupling capacitor at the output
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04/07/2016
100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
30. An amplifier without has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the currentshunt negative amplifier using the above amplifier with a feedbacik factor of 0.2 is A. 1/11KΩ B. 1/5KΩ C. 5KΩ D. 11KΩ OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS 31. The action of JFET in its equivalent circuit can best be represented as a A. Current controlled Current source B. Current controlled voltage source C. Voltage controlled voltage source D. voltage controlled current source 32. Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250 ,are cascaded.The open circuit voltage gain of combined amplifier is A. 49dB B. 51dB C. 98dB D. 102dB 33. An ideal OPAMP is an ideal A. Current controlled Current source B. Current controlled voltage source C. Voltage controlled voltage source D. voltage controlled current source 34. In a fullwave rectifier using two ideal diodes,Vdc & Vm are the dc & peak values of the voltage respectively across a resistive load. If PIV is the peak inverse voltage of the diode, then the appropriate relationships for this rectifier is. A. Vdc = Vm/π, PIV=2Vm B. Vdc = 2Vm/π, PIV=2vm C. Vdc = 2Vm/π, PIV=Vm D. Vdc = Vm/π, PIV=Vm 35. The cascade amplifier is a multistage configuration of A. CCCB . B. CECB C. CBCC D. CECC 36. The current gain of a BJT is A. gm r0 B. gm / r0 C. gm rπ D. gm /rπ 37. The most commonly used amplifier in sample & hold circuits is A. A unity gain noninverting amplifier B. A unity gain inverting amplifier C. An inverting amplifier with a gain of 10 D. An inverting amplifiers with a gain of 100 OBJECTIVE QUESTIONS IN ANALOG ELECTRONICS http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
38. To prevent a DC return between source and load, it is necessary to use A. resistor between source and load B. inductor between source and load C. capacitor between source and load D. either A. or B. 39. Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in A. Only the temperature B. only the β of the transistor C. Both Temperature & β D. None of the above 40. Voltage Series also called seriesshunt ) results in A. Increase in both input & output impedances B. Decreases in both input & output impedances C. Increase in input impedance & decreases in output impedance D. Decrease in input impedance & increase in output impedance 41. The encapsulation of transistor is necessary for A. preventing radio interference B. preventing photoemission effects C. avoiding loss of free electrons D. mechanical ruggedness Answer: D 42. In a transistor leakage current mainly depends on A. doping of base B. size of emitter C. rating of transistor D. temperature Answer: D 43. In a CB amplifier the maximum efficiency could be A. 99% B. 85% C. 50% D. 25% Answer: D 44. When a transistor is connected in common emitter mode, it with have A. negligible input resistance and high output resistance B. high input resistance and low output resistance C. medium input resistance and high output resistance D. low input resistance as well as output resistance Answer: C
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
45. In all base driver amplifiers A. ac collector voltage is 180° out of phase with ac base voltage B. ac emitter voltage is 180° out of phase with ac base voltage C. ac collector voltage is in phase with ac base voltage D. none of the above Answer: A 46. The horizontal intercept of dc load line is the same as ideal A. cut off point B. saturation point C. operating point D. quasi saturation point Answer: A 47. In deriving ac equivalent circuit for an amplifier circuit we short circuit A. all resistors B. all transistors C. all inductors D. all capacitors Answer: D 48. Which of the following statements is false? A. Push pull signals are equal and opposite in phase B. Class AB operation cannot be used for a push pull audio power output phase C. A push pull output transformer has a centretapped primary D. All of the above Answer: B 49. Which of the following amplifier circuit using junction transistor has the best gain? A. Common base B. Common emitter C. Common collector D. All have the same gain Answer: B 50. In an opamp 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 Answer: A Answers: 1. C 2. B 3. A 4. A 5. A 6. D 7. D 8. B 9. A 10. B 11. D 12. C 13. B 14. C 15. B 16. C 17. A 18. D 19. C 20. D 21. A 22. B 23. A 24. A 25. B 26. B 27. C 28. C 29. A 30. A 31. D 32. C 33. B http://engineeringinterviewquestions.com/analogelectronicsquestionsanswerspdf/
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100 TOP ANALOG ELECTRONICS Questions and Answers pdf ANALOG ELECTRONICS Questions
34. B 35. B 36. C 37. B 38. C 39. C 40. C. ANALOG ELECTRONICS Questions and Answers pdf free :: I WILL UPDATE REMAINING QUESTIONS AS SOON AS EARLY —–> KEEP IN TOUCH
Power Capacitor EPCOS Manufacturer of electronic components, modules and systems
This entry was posted in ANALOG ELECTRONICS Questions and tagged 100 TOP ANALOG ELECTRONICS Questions with Answers. Bookmark the permalink.
3 Responses to 100 TOP ANALOG ELECTRONICS Questions and Answers pdf premila kumari says: June 25, 2016 at 9:52 am
Its very help full for me thank u sir Reply
kulkdeep says: June 24, 2016 at 4:01 am
hi Reply
premila kumari says: June 25, 2016 at 9:52 am
Hi sir Reply
Engineering Interview Questions.com [LAB VIVA MANUALSMCQsSEMINAR TOPICSGATECAT SYLLABUSONLINE QUIZ TESTOBJECTIVE TYPE QUESTIONS AND ANSWERS PDF ]
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