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.What usually controls the open-loop cutoff frequency of an op amp?
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Question 2 of 30
Q-2.If the ac voltage across the emitter diode is 1 mV and the ac emitter current is 0.1 mA, the ac resistance of the emitter diode is
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Question 3 of 30
Q-3.In a buck regulator, the output voltage is filtered with a
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Question 4 of 30
Q-4.An ICVS amplifier has no output voltage. A possible trouble is
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Question 5 of 30
Q-5.The two principal electrodes present in every tube are
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Question 6 of 30
Q-6.In a negative feedback amplifier, voltage sampling:
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Question 7 of 30
Q-7.The input voltage to a positive limiter is a triangular wave of 8 Vpp and an average value of 0. If the reference level is 2 V, the output is
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Question 8 of 30
Q-8.The knee voltage of a diode is approximately equal to the
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Question 9 of 30
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Question 10 of 30
Q-10.The collector current of a class C amplifier
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Question 11 of 30
Q-11.The voltage between the input terminals of a real op amp is
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Question 12 of 30
Q-12.The input signal used with a JFET analog switch should be
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Question 13 of 30
Q-13.A zener voltage regulator maintain constant output voltage
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Question 14 of 30
Q-14.For typical operation, you need to use reverse bias with a
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Question 15 of 30
Q-15.The input impedance of a FET is of the order of
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Question 16 of 30
Q-16.Silicon diode is less suited for low voltage rectifier operation because:
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Question 17 of 30
Q-17.A graph of ac emitter current versus ac base-emitter voltage applies to the
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Question 18 of 30
Q-18.The voltage follower has a
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Question 19 of 30
Q-19.To detect when the input is greater than a particular value, use a
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Question 20 of 30
Q-20.The Zener effect is valid approximately:
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Question 21 of 30
Q-21.The input stage of an op amp is usually a
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Question 22 of 30
Q-22.The varactor diode is:
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Question 23 of 30
Q-23.A square wave out of an emitter follower implies
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Question 24 of 30
Q-24.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 25 of 30
Q-25.The input current to a shunt regulator is
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Question 26 of 30
Q-26.Saw-tooth voltage of a CRO means:
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Question 27 of 30
Q-27.
Both positive and negative feedback is employed in
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Question 28 of 30
Q-28.Testing is used for:
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Question 29 of 30
Q-29.When Q is greater than 1, a bandpass filter should be built with
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Question 30 of 30
Q-30.Compared to a CE stage, a swamped amplifier has an input impedance that is
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