Learn Analog Electronics MCQ Questions with answers and solutions.

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Q. The action of JFET in its equivalent circuit can best be represented as a

(A) Current controlled Current source
(B) Current controlled voltage source
(C) Voltage controlled voltage source
(D) voltage controlled current source

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Q. Three identical amplifiers with each one having a voltage gain of 50, input resistance of 1KΩ & output resistance of 250 ,are cascade D. The open circuit voltage gain of combined amplifier is

(A) 49dB
(B) 51dB
(C) 98dB
(D) 102dB

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Q. An ideal OP-AMP is an ideal

(A) Current controlled Current source
(B) Current controlled voltage source
(C) Voltage controlled voltage source
(D) voltage controlled current source

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Q. In a full-wave rectifier using two ideal diodes,Vdc & Vm are the dc & peak values of the voltage respectively across a resistive loaD. If PIV is the peak inverse voltage of the diode, then the appropriate relationships for this rectifier is.

(A) Vdc = Vm/π, PIV=2Vm
(B) Vdc = 2Vm/π, PIV=2vm
(C) Vdc = 2Vm/π, PIV=Vm
(D) Vdc = Vm/π, PIV=Vm

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Q. The cascade amplifier is a multistage configuration of

(A) CC-CB.
(B) CE-CB
(C) CB-CC
(D) CE-CC

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Q. The current gain of a BJT is

(A) gm r0
(B) gm / r0
(C) gm rπ
(D) gm /rπ

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Q. The most commonly used amplifier in sample & hold circuits is

(A) A unity gain non-inverting amplifier
(B) A unity gain inverting amplifier
(C) An inverting amplifier with a gain of 10
(D) An inverting amplifiers with a gain of 100

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Q. To prevent a DC return between source and load, it is necessary to use

(A) resistor between source and load
(B) inductor between source and load
(C) capacitor between source and load
(D) either

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Q. Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in

(A) Only the temperature
(B) only the β of the transistor
(C) Both Temperature & β
(D) None of the above

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Q. Voltage Series feedback also called series-shunt feedback) results in

(A) Increase in both input & output impedances
(B) Decreases in both input & output impedances
(C) Increase in input impedance & decreases in output impedance
(D) Decrease in input impedance & increase in output impedance

Analog Electronics MCQs with answers Page - 4

Q. The action of JFET in its equivalent circuit can best be represented as a

Q. Three identical amplifiers with each one having a voltage gain of 50, input resistance of 1KΩ & output resistance of 250 ,are cascade D. The open circuit voltage gain of combined amplifier is

Q. An ideal OP-AMP is an ideal

Q. In a full-wave rectifier using two ideal diodes,Vdc & Vm are the dc & peak values of the voltage respectively across a resistive loaD. If PIV is the peak inverse voltage of the diode, then the appropriate relationships for this rectifier is.

Q. The cascade amplifier is a multistage configuration of

Q. The current gain of a BJT is

Q. The most commonly used amplifier in sample & hold circuits is

Q. To prevent a DC return between source and load, it is necessary to use

Q. Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in

Q. Voltage Series feedback also called series-shunt feedback) results in

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