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 vacuum tube is also known as electronic valve because
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Question 2 of 30
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Question 3 of 30
Q-3.A current booster is a transistor in
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Question 4 of 30
Q-4.The current gain of a PNP transistor is
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Question 5 of 30
Q-5.The input signal for an instrumentation amplifier usually comes from
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Question 6 of 30
Q-6.The photo-SCR responds to
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Question 7 of 30
Q-7.If the base supply voltage increases, the Q point moves
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Question 8 of 30
Q-8.When the diode current is large, the bias is
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Question 9 of 30
Q-9.A SCR is usually turned on by
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Question 10 of 30
Q-10.The voltage across the zener resistance is usually
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Question 11 of 30
Q-11.For a class B push-pull emitter follower to work properly, the emitter diodes must
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Question 12 of 30
Q-12.In CE mode of transistor, the most noticeable effect of a small increase in temperature is
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Question 13 of 30
Q-13.The transition capacitance in step-graded junction varies as:
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Question 14 of 30
Q-14.To reverse bias the collector base Junction of silicon transistor, the minimum value of VCE required is
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Question 15 of 30
Q-15.A Darlington transistor has
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Question 16 of 30
Q-16.AN SCR is not made of Germanium because
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Question 17 of 30
Q-17.If a filter has six second order stages and one first-order stage, the order is
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Question 18 of 30
Q-18.Most of the electrons in the base of an npn transistor do not recombine because they
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Question 19 of 30
Q-19.The emitter is at ac ground in a
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Question 20 of 30
Q-20.In a p -type silicon sample, the hole concentration is 2.25 x 1015 /cm3 . If the intrinsic carrier concentration 1.5 x 1010 /cm3 , the electron concentration is
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Question 21 of 30
Q-21.In Electronics the term IC denotes
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Question 22 of 30
Q-22.A veractor diode is optimized for
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Question 23 of 30
Q-23.An emitter follower has a voltage gain that is
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Question 24 of 30
Q-24.Heat sinks reduce the
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Question 25 of 30
Q-25.for transistor action
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Question 26 of 30
Q-26.The gain of an op-amp voltage follower is
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Question 27 of 30
Q-27.If the emitter resistor opens with TSEB, the collector voltage will
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Question 28 of 30
Q-28.The all-pass filter is sometimes called a
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Question 29 of 30
Q-29.An ordinary resistor is an example of
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Question 30 of 30
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