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.An RC series circuit can be used as an integrator when output a taken across
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Question 2 of 30
Q-2.Under normal operating voltage, the reverse current in a silicon diode is about
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Question 3 of 30
Q-3.The input impedance of an ideal op amp is
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Question 4 of 30
Q-4.Depending upon the type of emitter, the temperature used for thermionic emission varies is between
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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.A series resonant circuit, the impedance at resonance is
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Question 7 of 30
Q-7.The all-pass filter has
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Question 8 of 30
Q-8.The critical grid voltage of a thyrotron is defined as the negative grid voltage, for a given plate potential at which ionization of the gas starts
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Question 9 of 30
Q-9.Trivalent atoms have how many valence electrons?
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Question 10 of 30
Q-10.A 741C cannot work without
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Question 11 of 30
Q-11.A p-type and n-type semiconductor attend positive and negative charge respectively
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Question 12 of 30
Q-12.Any thyristor can be turned off with
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Question 13 of 30
Q-13.In a step-down transformer, which is larger?
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Question 14 of 30
Q-14.The contact potential V0 in a p –n diode equals:
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Question 15 of 30
Q-15.The capacitor that produces an ac ground is called a
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Question 16 of 30
Q-16.Components are soldered together in
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Question 17 of 30
Q-17.Measurement of Hall coefficient enables the determination of:
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Question 18 of 30
Q-18.Each diode of full wave centre-tapped rectifier conducts for:
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Question 19 of 30
Q-19.The ac load line of an emitter follower is usually
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Question 20 of 30
Q-20.In an open circuit p–n junction, the energy band diagram of n -region shifts relative to that of p -diagram:
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Question 21 of 30
Q-21.A BJT is in the saturation region if:
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Question 22 of 30
Q-22.Heat sinks reduce the
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Question 23 of 30
Q-23.the most commonly used IC are
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Question 24 of 30
Q-24.The voltage that turns on an EMOS device is the
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Question 25 of 30
Q-25.If the bypass capacitor is open, the ac input voltage will
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Question 26 of 30
Q-26.Given a voltage reference of +2.5 V, we can get a voltage reference of +15 V by using a
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Question 27 of 30
Q-27.A transistor has hfe = 27, then its hfe will be:
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Question 28 of 30
Q-28.The Quiescent point Q in a voltage amplifier is selected in the middle of the active region because
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Question 29 of 30
Q-29.If the output coupling capacitor is open, the ac input voltage will
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Question 30 of 30
Q-30.The condition necessary to calculate hoe of a transistor:
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