This set of Engineering Materials Science "Multiple Choice Questions & Answers" are based on "ELECTRICAL PROPERTY"
ELECTRICAL PROPERTY
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.
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 are given below:
PART - III
1) Forbidden energy gap for the insulator is _________ eV
Correct Answer is "C"
The forbidden energy gap for the semiconductor is >2 eV
2) The Fermi energy for intrinsic semiconductor lies
Correct Answer is "D"
The Fermi energy for intrinsic semiconductor lies In the middle of the bandgap
3) The Fermi energy for insulator lies
Correct Answer is "D"
The Fermi energy for the insulator lies In the middle of the bandgap
4) Electrons with energy _________ Fermi energy accelerated in the presence of an electric field.
Correct Answer is "A"
Electrons with energy Greater than Fermi energy accelerated in the presence of an electric field.
5) Holes have energy ________ Fermi energy.
Correct Answer is "B"
Holes have energy less than Fermi energy.
6) At a particular temperature larger the bandgap _______ the electrical conductivity.
Correct Answer is "B"
At a particular temperature larger the bandgap Smaller the electrical conductivity.
7) Most widely used conducting materials are
Correct Answer is "D"
The most widely used conducting materials are copper and aluminum
8) With increasing the temperature the conductivity of semiconductor
Correct Answer is "A"
With increasing the temperature the conductivity of the semiconductor Increases and the resistivity decreases.
9) With increasing the temperature the conductivity of pure metals
Correct Answer is "B"
With increasing the temperature the conductivity of pure metal decreases and the resistivity increases due to an increase in electron scattering with thermal vibration.
10) The relation between the drift velocity, electric field and the electron mobility is
Correct Answer is "C"
The relation between the drift velocity, electric field, and electron mobility is
E =Vd/ μe
E =Vd/ μe
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 (MCQ)
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