With each visit of this Basic Electronics 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 silicon sample is uniformly doped with 1016 phosphorus atoms/cm3 and 2 × 1016 boron atoms/cm3 . If all the dopants are fully ionized, the material is:
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Question 2 of 30
Q-2.In a PN junction holes diffuse from the p-region to n-region because
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Question 3 of 30
Q-3.What is the most important fact about the collector current?
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Question 4 of 30
Q-4.When the base resistor decreases, the collector voltage will probably
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Question 5 of 30
Q-5.The varactor is usually
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Question 6 of 30
Q-6.A dc signal has a frequency of
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Question 7 of 30
Q-7.Holding current of a thyristor is:
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Question 8 of 30
Q-8.An audio amplifier operates in the frequency range of
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Question 9 of 30
Q-9.The voltage gain equals the output voltage divided by the
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Question 10 of 30
Q-10.A DIAC can be termed as:
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Question 11 of 30
Q-11.In a linearly-graded p–n junction the doping concentration:
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Question 12 of 30
Q-12.When an op amp is not saturated, the voltages at the non-inverting and inverting inputs are
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Question 13 of 30
Q-13.The noise level in FET is
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Question 14 of 30
Q-14.In the classic three op-amp instrumentation amplifier, the differential voltage gain is usually produced by the
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Question 15 of 30
Q-15.CRO fluroscent screen uses the phosphorous isotope
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Question 16 of 30
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Question 17 of 30
Q-17.The bulk resistance of a 1N4001 is
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Question 18 of 30
Q-18.When the two input terminals of a diff amp are grounded,
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Question 19 of 30
Q-19.The input voltage to an emitter follower is usually
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Question 20 of 30
Q-20.The emitter of a CE amplifier has no ac voltage because of the
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Question 21 of 30
Q-21.The voltage follower has a
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Question 22 of 30
Q-22.An integrated circuit has extremely
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Question 23 of 30
Q-23.from the output characteristics, FET is considered to be a solid state device equivalent to a
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Question 24 of 30
Q-24.The flow of valence electrons to the left means that holes are flowing to the
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Question 25 of 30
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Question 26 of 30
Q-26.Turn-on time of an SCR can be reduced by using a:
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Question 27 of 30
Q-27.
The loop gain of the oscillator to start with is
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Question 28 of 30
Q-28.The voltage gain of an op amp is unity at the
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Question 29 of 30
Q-29.The resistance of a loudspeaker is usually
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Question 30 of 30
Q-30.In CB configuration, the output VI characteristics of a transistor are drawn by taking
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