Assertion (A): Intrinsic semiconductor is an insulator at 0 K Reason (R): Fermi level in intrinsic semiconductor is in the centre of forbidden energy band

Electronics and Communication Engineering

Electronic Devices and Circuits

Level 0
0
Attempts
105
users
0 %
Accuracy
share

Related MCQs

Assertion
(A): Intrinsic semiconductor is an insulator at 0

Assertion
(A): Intrinsic semiconductor is an insulator at 0 K
Reason (R): Fermi level in intrinsic semiconductor is in the centre of forbidden energy band

Assertion
(A): At room temperature the fermi level in p type

Assertion
(A): At room temperature the fermi level in p type semiconductor lies nearer to the valence band and in n type semiconductor it lies nearer to the conduction band
Reason (R): At room temperature, the p type semiconductor is rich in holes and n type semiconductor is rich in electrons

Consider the following statements Acceptor level lies close

Consider the following statements Acceptor level lies close the valenceband.
Donor level lies close to the valenceband.
n type semiconductor behaves as an insulator at 0 K.p type semiconductor behaves as an insulator at 0 K. Of these statements

In a material, the Fermi level is located between the centre

In a material, the Fermi level is located between the centre of the forbidden band and the conductionband.
Then what is that material

Statements No conductor is aninsulator.
Wood isinsulator.
Ma

Statements No conductor is aninsulator.
Wood isinsulator.
Magnet isconductor.
Some Copper is notwood.
Conclusions:
I. Copper is aconductor.
II. Some copper isinsulator.
III.
No magnet iswood.
IV. Insulator is wood

In an n type semiconductor the fermi level is 0.35 eV below

In an n type semiconductor the fermi level is 0.35 eV below the conduction band, the concentration of donor atoms is increased to threetimes.
The new position of Fermi level will be

Assertion
(A): Acceptor extrinsic semiconductor has higher c

Assertion
(A): Acceptor extrinsic semiconductor has higher conductivity than intrinsicsemiconductor.
Reason (R): Addition of p-type impurity produces an allowable discrete energy level just above valence band

Assertion
(A): For most metals, Fermi energy EF is less than

Assertion
(A): For most metals, Fermi energy EF is less than 10 e
V.Reason (R): Fermi level of a metal is given by EF = 3.64 x 10-19 (n)2/3 where n is number of free electrons/m3 of metal

In a p type material the Fermi level is 0.3 eV above valence

In a p type material the Fermi level is 0.3 eV above valenceband.
The concentration of acceptor atoms isincreased.
The new position of Fermi level is likely to be

Consider the following statements relating to the stability

Consider the following statements relating to the stability of floating as well as submerged bodies :1. A submerged body is stable when the centre of gravity is below the centre ofbuoyancy.
2. A floating body is stable when the centre of gravity is above the centre ofbuoyancy.
3. A floating body is stable when the centre of gravity is below themetacentre.
4. A submerged body is in stable equilibrium when the centre of gravity coincides with the centre ofbuoyancy.
Of these statements

No Public Explanation

Click option to see answer

Every MCQ Answered

1. Add foxoyo.com with question

2. Click option and get answer

Suggested Books

Related Topics