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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 12
11.
What is the function of silicon dioxide layer in MOSFETS?
To provide high input resistance
To increase current carriers
To provide high output resistance
Both (a) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The modulation of effective base width by collector voltage is known as Early effect, hence reverse collector voltage
increases both a and β
decrease both a and β
increase a but decrease β
decrease a but increase β
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.

Assertion (A): In intrinsic semiconductors, the charge concentration increases with temperature.

Reason (R): At higher temperatures, the forbidden energy gap in semiconductors is lower.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Covalent bond energy in Germanium is approximately
3.8 eV
4.7 eV
7.4 eV
12.5 eV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Which is correct for a vacuum triode?
μ = rpgm
rp = μgm
gm = μrp
rpgm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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