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.A narrow band amplifier is one that is bandwidth
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Question 2 of 30
Q-2.In RC phase shift oscillator will not produce any oscillations until and unless the voltage gain of its internal amplifier is
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Question 3 of 30
Q-3.A UJT exhibits negative resistance region:
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Question 4 of 30
Q-4.What kind of device is a resistor?
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Question 5 of 30
Q-5.In a transistor, which normal biasing, the
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Question 6 of 30
Q-6.For typical operation, you need to use reverse bias with a
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Question 7 of 30
Q-7.The collector voltage of a VDB circuit is not sensitive to changes in the
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Question 8 of 30
Q-8.In a p –n diode, for constant value of current at room temperature, dv /dt varies approximately at the rate of:
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Question 9 of 30
Q-9.The SiO2 layer in an IC acts as
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Question 10 of 30
Q-10.When the source voltage increases in a zener regulator, which of these currents remains approximately constant?
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Question 11 of 30
Q-11.ICBO
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Question 12 of 30
Q-12.A second-order all-pass filter can vary the output phase from
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Question 13 of 30
Q-13.The voltage across the load resistor of a CE amplifier is
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Question 14 of 30
Q-14.For good stabilized biasing of the transistor of the CE amplifier . We should have:RE /RB >> hrb
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Question 15 of 30
Q-15.To isolate an output circuit from an input circuit, which is the device to use?
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Question 16 of 30
Q-16.If the load resistance decreases in a zener regulator, the series current
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Question 17 of 30
Q-17.With both bases grounded, the only offset that produces an error is the
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Question 18 of 30
Q-18.Vacuum diode will conduct when
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Question 19 of 30
Q-19.Treating a connecting wire as a conductor with zero resistance is an example of the
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Question 20 of 30
Q-20.If the depletion layer gets wider, the capacitance
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Question 21 of 30
Q-21.The zener current in a zener follower is
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Question 22 of 30
Q-22.Depending upon the type of emitter, the temperature used for thermionic emission varies is between
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Question 23 of 30
Q-23.The state-variable filter
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Question 24 of 30
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Question 25 of 30
Q-25.If Beta = 200 and re = 150 ohm, the input impedance of the base is approximately
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Question 26 of 30
Q-26.In a VCVS amplifier, any decrease in open-loop voltage gain produces an increase in
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Question 27 of 30
Q-27.When a large sine wave drives a Schmitt trigger, the output is
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Question 28 of 30
Q-28.A push pull amplifier
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Question 29 of 30
Q-29.If the input is a rectangular pulse, the output of an integrator is a
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Question 30 of 30
Q-30.Benefit of tuned circuit is given as
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