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.The most significant component of ripple voltage in a half-wave rectifier is contained in:
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Question 2 of 30
Q-2.A cascode amplifier has the advantage of
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Question 3 of 30
Q-3.The SI unit of Forces is
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Question 4 of 30
Q-4.Transformer coupling is an example of
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Question 5 of 30
Q-5.If the emitter resistance increases in a VDB circuit, the collector voltage
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Question 6 of 30
Q-6.The initial slope of a sine wave is directly proportional to
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Question 7 of 30
Q-7.Transconductance is measured in
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Question 8 of 30
Q-8.With voltage-divider bias VDB, an increase in emitter resistance will
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Question 9 of 30
Q-9.The probability that an electron in a metal occupies the Fermi-level, at any temperature (>0 K) is:
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Question 10 of 30
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Question 11 of 30
Q-11.A forward voltage can be applied to an SCR after its:
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Question 12 of 30
Q-12.The current drain of an amplifier is the
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Question 13 of 30
Q-13.The emission of electrons from a metallic surface by the bombardment of high speed particles is called
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Question 14 of 30
Q-14.A 741C cannot work without
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Question 15 of 30
Q-15.The node voltage at the top of the tail resistor is closest to
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Question 16 of 30
Q-16.The beta of transistor maybe determined directly from the curve plotted between
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Question 17 of 30
Q-17.System on chip means:
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Question 18 of 30
Q-18.In a p –n diode, for constant value of current at room temperature, dv /dt varies approximately at the rate of:
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Question 19 of 30
Q-19.The input offset current is usually
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Question 20 of 30
Q-20.When Q decreases in a Colpitts oscillator, the frequency of oscillation
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Question 21 of 30
Q-21.The maximum speed of operation of an electronic switch is
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Question 22 of 30
Q-22.The base-emitter voltage is usually
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Question 23 of 30
Q-23.A transistor acts like a diode and a
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Question 24 of 30
Q-24.The stray-wiring capacitance has an effect on the
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Question 25 of 30
Q-25.Slew rate is defined as the:
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Question 26 of 30
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Question 27 of 30
Q-27.The criteria for the selection of output transformer is
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Question 28 of 30
Q-28.1 ppm is equivalent to
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Question 29 of 30
Q-29.The second approximation works well when
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Question 30 of 30
Q-30.The threshold voltage of an n-channel enhancement mode MOSFET is 0.5 V. When the device is biased at a gate voltage of 3 V. Pinch-off would occur at a drain voltage of:
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