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-5 section-1

Each section contains 100 MCQs on Electronic Devices and Circuits .

The most commonly used semiconductor material is

A) Silicon B) Germanium C) Mixture of silicon and germanium D) None of the above

Discuss

Answer & Solution

Answer: Option A

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

Permalloy is

A) A variety of stainless steel B) A polymer C) A conon-ferrous alloy used in aircraft industry D) A nickel an iron alloy having high permeability

Discuss

Answer & Solution

Answer: Option D

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

Which one of the following is not a characteristic of a ferroelectric material?

A) High dielectric constant B) No hysteresis C) Ferroelectric characteristic only above the curie point D) Electric dipole moment

Discuss

Answer & Solution

Answer: Option C

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

In which of these is reverse recovery time nearly zero?

A) Zener diode B) Tunnel diode C) Schottky diode D) PIN diode

Discuss

Answer & Solution

Answer: Option C

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

Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is

A) Normal to both current and magnetic field B) In the direction of current C) Antiparallel to magnetic field D) In arbitrary direction

Discuss

Answer & Solution

Answer: Option A

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

Fermi level is the amount of energy in which

A) A hole can have at room temperature B) An electron can have at room temperature C) Must be given to an electron move to conduction band D) None of the above

Discuss

Answer & Solution

Answer: Option C

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

In monolithic ICs, all the components are fabricated by

A) Diffusion process B) Oxidation C) Evaporation D) None

Discuss

Answer & Solution

Answer: Option A

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

When diodes are connected in series to increase voltage rating the peak inverse voltage per junction

A) should not exceed half the breakdown voltage B) should not exceed the breakdown voltage C) should not exceed one third the breakdown voltage D) may be equal to or less than breakdown voltage

Discuss

Answer & Solution

Answer: Option C

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

If fixed positive charges are present in the gate oxide of an n-channel enhancement type MOSFET, it will lead to

A) a decrease in the threshold voltage B) channel length of modulation C) an increase in substrate leakage current D) an increase in accumulation capacitance

Discuss

Answer & Solution

Answer: Option A

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

The main drawback of JFET is its

A) High input impedance B) Low input impedance C) Higher noise D) Lower gain

Discuss

Answer & Solution

Answer: Option C

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

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Electronic Devices And Circuits MCQ Questions & Answers | ECE