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Monday 26 October 2020

Electrical Property of Materials MCQs | Part - VI | Material Science MCQs

This set of Engineering Materials Science "Multiple Choice Questions & Answers" are based on "ELECTRICAL PROPERTY OF MATERIALS"

Electrical Property of Materials MCQs | Part - VI




ELECTRICAL PROPERTY OF MATERIALS


Multiple Choice Questions (MCQ)


Hello reader, here you can find some MCQ with answers. But before reading this I will suggest you take a practice test on these questions given below. so you can understand your strength on this topic.


Click here to go Practice Test section on this topic namely Electrical Property of Materials.


But if you want to read this topic first and then practice it then read it carefully.  The Multiple Choice Questions (MCQ) based on Electrical Property of Materials are given below:



PART - VI



1) Zener diode is used for


Correct Answer is "B"

Zener diode is used for stabilization.



2) p-n junction is formed when P-type semiconductor and N-type semiconductor are joined


Correct Answer is "D"

The p-n junction is formed when P-type semiconductor and N-type semiconductor are joined in such a manner that electrons and holes diffuse to give a depletion layer.



3) The depletion region of a junction diode is formed


Correct Answer is "B"

The depletion region of a junction diode is formed under reverse bias.



4) The width of the depletion layer of a junction


Correct Answer is "C"

The width of the depletion layer of a junction is increased under reverse bias.



5) A Zener diode is used as


Correct Answer is "A"

A Zener diode is used as a voltage regular.



6) The carrier concentration vs temperature curve for extrinsic semiconductor has ____ region/s


Correct Answer is "C"

The carrier concentration vs temperature curve for an extrinsic semiconductor has three regions i.e. freeze-out region, extrinsic region, and intrinsic region.



7) Carrier mobility is independent of doping concentration for extrinsic semiconductor at a dopant concentration


Correct Answer is "A"

Carrier mobility is independent of doping concentration for extrinsic semiconductor at dopant concentration less than 1020.



8) The relation between Hall coefficient (RH), electron mobility (μe) and conductivity (σ) is


Correct Answer is "B"

The relation between Hall coefficient (RH), electron mobility (μe), and conductivity (σ) is RH = μe × Ïƒ



9) The resistivity of a superconductor is


Correct Answer is "A"

The resistivity of the superconductor is 0.



10) The nature of the coefficient of resistant of an insulator is


Correct Answer is "D"

The coefficient of resistance of an insulator is infinite.



Do you read all the questions and answers given above carefully? let's make a practice on all the questions given above.
Go to:  Practice Test on Electrical Property of Materials (MCQ) PART - VI


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Electrical Property of Materials Multiple Select Questions (MSQ) & Answers All Parts

Disclaimer:

Some of the questions given above may be similar to questions from some books and other online available sources but the answers to all the questions are genuinely made by admin@materialscienceonline.

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