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.A series regulator is more efficient than a shunt regulator because
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Question 2 of 30
Q-2.Fabricated layers of SCR are
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Question 3 of 30
Q-3.For an SCR, dv /dt protection is achieved through the use of:
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Question 4 of 30
Q-4.A JFET has a potential divider bias arrangement if the resistor between the gate and power supply terminal is removed. The JFET will:
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Question 5 of 30
Q-5.For a junction FET in the pinch-off region, as the drain voltage is increased, the drain current:
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Question 6 of 30
Q-6.The criteria for the selection of output transformer is
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Question 7 of 30
Q-7.A silicon controlled rectifier has
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Question 8 of 30
Q-8.Total space–charge neutrality is given by:
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Question 9 of 30
Q-9.An oscillator always needs an amplifier with
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Question 10 of 30
Q-10.A Practical constant Current source should have internal resistance
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Question 11 of 30
Q-11.For good stabilized biasing of the transistor of the CE amplifier . We should have:RE /RB >> hrb
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Question 12 of 30
Q-12.The Zener effect is valid approximately:
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Question 13 of 30
Q-13.At room temperature, the current in an intrinsic semiconductor is due to
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Question 14 of 30
Q-14.In the two-transistor voltage regulator, the output voltage
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Question 15 of 30
Q-15.Measurement of Hall coefficient in a semiconductor provides information on the:
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Question 16 of 30
Q-16.In a standard regulator circuit that uses Zener diode 10 V, the input voltage varies from 25 to 40 V, load current varies from 10 to 20 mA, and the minimum Zener current is 5 mA, the value of the series resistance in ohms will be:
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Question 17 of 30
Q-17.An amplifier with resistive negative feedback has two left half plane poles in its open-loop transfer junction. The amplifier will be:
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Question 18 of 30
Q-18.When the input signal is large, a source follower has
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Question 19 of 30
Q-19.The current gain of a PNP transistor is
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Question 20 of 30
Q-20.The SI unit of Forces is
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Question 21 of 30
Q-21.Most of the electrons in the base of an npn transistor flow
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Question 22 of 30
Q-22.The pulse width out of a one-shot multivibrator increases when the
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Question 23 of 30
Q-23.The node voltage at the top of the tail resistor is closest to
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Question 24 of 30
Q-24.The voltage across the zener resistance is usually
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Question 25 of 30
Q-25.A first-order stage cannot have a
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Question 26 of 30
Q-26.When the Q point is at the center of the ac load line, the maximum peak-to-peak output voltage equals
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Question 27 of 30
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Question 28 of 30
Q-28.An op amp with a rail-to-rail output
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Question 29 of 30
Q-29.At reverse bias, the number of minority Carriers crossing the junction of a diode depends primarily on the
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Question 30 of 30
Q-30.If a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point
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