Analog Electronics MCQ Questions & Answers

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Learn Analog Electronics MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Analog Electronics MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-4 section-1

Each section contains 100 MCQs on Analog Electronics .

Asource follower using an FET usually has a voltage gain which is

A) Greater than +100 B) Slightly less than unity but positive C) Exactly unity but negative D) About -10

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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

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

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A dc power supply has no-load voltage of 30v,and a full-load voltage of 25v at full-load current of 1A.Its output resistance & load regulation ,respectively are

A) 5 Ω & 20 % B) 25 Ω & 20 % C) 5 Ω & 16.7 % D) 25 Ω & 16.7 %

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In an OP-amp differentiator

A) The amplitude of output is proportional to rate of change of input B) The amplitude of output is proportional to input C) Output occurs when input is finite and constant D) Polarity of input and output is the same

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Class AB operation is often used in power large signal) amplifiers in order to

A) Get maximum efficiency B) Remove even harmonics C) Overcome a crossover distortion D) Reducing collector dissipation

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following amplifier circuit using junction transistor has the best gain?

A) Common base B) Common emitter C) Common collector D) All have the same gain

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

When a transistor is connected in common emitter mode, it with have

A) Negligible input resistance and high output resistance B) High input resistance and low output resistance C) Medium input resistance and high output resistance D) Low input resistance as well as output resistance

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In all base driver amplifiers

A) ac collector voltage is 180° out of phase with ac base voltage B) ac emitter voltage is 180° out of phase with ac base voltage C) ac collector voltage is in phase with ac base voltage D) none of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The effective channel length of a MOSFET in a saturation decreases with increase in

A) Gate voltage B) Drain voltage C) Source voltage D) Body voltage

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following statements is false?

A) Push pull signals are equal and opposite in phase B) Class AB operation cannot be used for a push pull audio power output phase C) A push pull output transformer has a centre-tapped primary D) All of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Analog Electronics MCQ Questions & Answers | ECE