Electronic Devices And Circuits MCQ Questions & Answers

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Learn Electronic Devices And Circuits 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. Electronic Devices And Circuits 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 Electronic Devices and Circuits .

The amount of photoelectric emission current depends on

A) Frequency of incident radiation B) Intensity of incident radiation C) Both frequency and intensity of incident radiation D) None of the above

Discuss

Answer & Solution

Answer: Option C

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

The sensitivity of human eyes is maximum at

A) White portion of spectrum B) Green portion of spectrum C) Red portion of spectrum D) Violet portion of spectrum

Discuss

Answer & Solution

Answer: Option B

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

The sensitivity of human eyes is maximum at

A) White portion of spectrum B) Green portion of spectrum C) Red portion of spectrum D) Violet portion of spectrum

Discuss

Answer & Solution

Answer: Option B

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

Which of the following could be the maximum current rating of junction diode by 126?

A) 1 A B) 10 A C) 20 A D) 100 A

Discuss

Answer & Solution

Answer: Option A

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

Piezoelectric quartz crystal resonators find application where

A) Signal amplification is required B) Rectification of the signal is required C) Signal frequency control is required D) Modulation of signal is required

Discuss

Answer & Solution

Answer: Option B

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

In the sale of diamonds the unit of weight is carat. One carat is equal to

A) 100 mg B) 150 mg C) 200 mg D) 500 mg

Discuss

Answer & Solution

Answer: Option C

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

Forbidden energy gap in germanium at 0 K is about

A) 10 eV B) 5 eV C) 2 eV D) 0.78 eV

Discuss

Answer & Solution

Answer: Option D

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

Assertion (A): A VMOS can handle much larger current than other field effect transistors.
Reason (R): In a VMOS the conducting channel is very narrow.

A) Both A and R are true and R is correct explanation of A B) Both A and R are true but R is not a correct explanation of A C) A is true but R is false D) A is false but R is true

Discuss

Answer & Solution

Answer: Option C

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

In a semiconductor diode, the barrier offers opposition to

A) Holes in P-region only B) Free electrons in N-region only C) Majority carriers in both regions D) Majority as well as minority carriers in both regions

Discuss

Answer & Solution

Answer: Option C

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

As compared to bipolar junction transistor, a FET

A) Is less noisy B) Has better thermal stability C) Has higher input resistance D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

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Electronic Devices And Circuits MCQ Questions & Answers | ECE