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.The collector current of a class C amplifier
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Question 2 of 30
Q-2.If the load resistance of an emitter follower is very large, the external ac emitter resistance equals
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Question 3 of 30
Q-3.A TRIAC can be used only in:
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Question 4 of 30
Q-4.The first stage of a preamp is
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Question 5 of 30
Q-5.In a gas filled tube, the gas used is
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Question 6 of 30
Q-6.If an emitter follower has VCEQ = 5 V, ICQ = 1 mA, and re = 1 kohm, the maximum peak-to-peak unclipped output is
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Question 7 of 30
Q-7.Voltage gain is directly proportional to
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Question 8 of 30
Q-8.The output voltage of an emitter follower is across the
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Question 9 of 30
Q-9.When the source voltage increases in a zener regulator, which of these currents remains approximately constant?
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Question 10 of 30
Q-10.Semi-logarithmic paper means
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Question 11 of 30
Q-11.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 12 of 30
Q-12.If the Q point is at the middle of the dc load line, clipping will first occur on the
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Question 13 of 30
Q-13.A switching regulator is considered
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Question 14 of 30
Q-14.In a differential amplifier, the CMRR is limited mostly by
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Question 15 of 30
Q-15.Doping concentration of BJT is high in the:
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Question 16 of 30
Q-16.The 78XX-12 produces a regulated output voltage of
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Question 17 of 30
Q-17.The second approximation works well when
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Question 18 of 30
Q-18.Which of the following transistors is symmetrical in there structure?
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Question 19 of 30
Q-19.A lag circuit has a phase angle that is
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Question 20 of 30
Q-20.If a splash of solder shorts the collector resistor of TSEB, the collector voltage will
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Question 21 of 30
Q-21.Double tuned amplifier circuit
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Question 22 of 30
Q-22.The Howland current source produces a
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Question 23 of 30
Q-23.The load voltage is approximately constant when a zener diode is
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Question 24 of 30
Q-24.The resistance of a loudspeaker is usually
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Question 25 of 30
Q-25.When a forward bias is applied to a crystal diode, it
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Question 26 of 30
Q-26.The regulator with the highest efficiency is the
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Question 27 of 30
Q-27.The diodes in a bridge rectifier each have a maximum dc current rating of 2 A. This means the dc load current can have a maximum value of
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Question 28 of 30
Q-28.For an n-channel JFET, having drain–source voltage constant if the gate–source voltage is increased to more negative pinch-off would occur for:
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Question 29 of 30
Q-29.The ac collector resistance of the first stage includes the
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Question 30 of 30
Q-30.The input impedance of an amplifier can be increased from 2 kilo ohm 250 Kohm by introducing
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