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.Varactor diodes are used in FM receivers to obtain:
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Question 2 of 30
Q-2.The series and parallel resonant frequencies of a crystal are
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Question 3 of 30
Q-3.When a junction transistor is operated under saturated conditions:
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Question 4 of 30
Q-4.A voltage regulator has a ripple rejection of -60 dB. If the input ripple is 1 V, the output ripple is
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Question 5 of 30
Q-5.The bandwidth of a class C amplifier decreases when the
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Question 6 of 30
Q-6.Nano in electronics is equal to
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Question 7 of 30
Q-7.If the collector resistor is open, the collector voltage is
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Question 8 of 30
Q-8.A phase splitter produces two output voltages that are
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Question 9 of 30
Q-9.If RC = 3.6 kohm and RL = 10 kohm, the ac load resistance equals
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Question 10 of 30
Q-10.Double tuned amplifier circuit
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Question 11 of 30
Q-11.A voltage multiplier is a circuit that
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Question 12 of 30
Q-12.The negative feedback in an amplifier
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Question 13 of 30
Q-13.The feedback resistor
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Question 14 of 30
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Question 15 of 30
Q-15.The approximate value of input impedance of a common emitter amplifier with emitter resistance Re is given by:
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Question 16 of 30
Q-16.The VGS(on) of an n-channel E-MOSFET is
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Question 17 of 30
Q-17.Which of the following has a negative-resistance region?
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Question 18 of 30
Q-18.When PN junction is prepared a layer is formed around the junction koda depletion layer because
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Question 19 of 30
Q-19.An ideal voltage source and an internal resistance is an example of the
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Question 20 of 30
Q-20.If the reference voltage is zero, the output of an active positive limiter is
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Question 21 of 30
Q-21.The conductivity of an intrinsic semiconductor is given by (symbols have the usual meanings):
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Question 22 of 30
Q-22.The transconductance curve is
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Question 23 of 30
Q-23.Potential barrier PN junction is established due to the charges on either side of the junction. the charges are
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Question 24 of 30
Q-24.If the unity-gain frequency is 5 MHz and the midband open loop voltage gain is 200,000, the cutoff frequency is
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Question 25 of 30
Q-25.With the same secondary voltage and filter, which has the most ripple?
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Question 26 of 30
Q-26.Silicon is not suitable for fabrication of light emitting diodes because it is:
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Question 27 of 30
Q-27.Input impedance of CRO is:
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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.Radar is a device with the help of which we can
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Question 30 of 30
Q-30.Which of the following transistors is symmetrical in there structure?
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