With each visit of this Electronics Devices and Circuits online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions
Question type
Randomized MCQs.Changes every time you visit the test
Total Number of Questions
30
Time Limit
20 Minutes
Points
1 Point for each Question
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Question 1 of 30
Q-1.Vacuum tube will only conduct if its anode is kept at a positive terminal with respect to cathode
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Question 2 of 30
Q-2.Packaging is used for:
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Question 3 of 30
Q-3.Usually, the distortion in an emitter follower is
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Question 4 of 30
Q-4.Transistor operates in the active region when
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Question 5 of 30
Q-5.The voltage gain of an op amp is unity at the
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Question 6 of 30
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Question 7 of 30
Q-7.Nano in electronics is equal to
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Question 8 of 30
Q-8.The approximation with a maximally-flat passband is
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Question 9 of 30
Q-9.Silicon is not suitable for fabrication of light-emitting diodes because it is:
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Question 10 of 30
Q-10.permeability of free space is
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Question 11 of 30
Q-11.Most of the electrons in the base of an npn transistor do not recombine because they
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Question 12 of 30
Q-12.The ac collector current equals the ac base current times the
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Question 13 of 30
Q-13.The trigger voltage of an SCR is closest to
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Question 14 of 30
Q-14.The second approximation works well when
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Question 15 of 30
Q-15.The CE amplifier circuit are preferred over CB amplifier circuits because they have
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Question 16 of 30
Q-16.A triode is used as an amplifier because
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Question 17 of 30
Q-17.The biasing circuit has a stability factor of 40 . If due to temperature change, ICO changes by 1 microampere then IC will change by
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Question 18 of 30
Q-18.The number of free electrons and holes in an intrinsic semiconductor increases when the temperature
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Question 19 of 30
Q-19.With the same secondary voltage and filter, which produces the least load voltage?
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Question 20 of 30
Q-20.The emitter current in a Junction with normal bias
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Question 21 of 30
Q-21.The current ICBO flows in the
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Question 22 of 30
Q-22.For a Q point near the center of the dc load line, clipping is more likely to occur on the
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Question 23 of 30
Q-23.The contact potential V0 in a p –n diode equals:
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Question 24 of 30
Q-24.The current through a p –n junction diode with V volts applied to the p -region relative to the n -region (where IO is the reverse saturation current of the diode, η the ideality factor, K the Boltzmann constant, T the absolute temperature and e the magnitude of charge on an electron) is:
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Question 25 of 30
Q-25.The application where one would most likely to find Quartz oscillator would be
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Question 26 of 30
Q-26.An ideal power supply should have voltage regulation
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Question 27 of 30
Q-27.If the frequency is greater than the power bandwidth,
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Question 28 of 30
Q-28.Absolute zero temperature equals
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Question 29 of 30
Q-29.The operating point of an NPN transistor amplifier should not be selected near the saturated region as it may
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Question 30 of 30
Q-30.The state-variable filter
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