Electronics - Semiconductor Principles - Discussion
Discussion Forum : Semiconductor Principles - General Questions (Q.No. 13)
13.
When an electron jumps from the valence shell to the conduction band, it leaves a gap. What is this gap called?
Discussion:
13 comments Page 1 of 2.
Samreen hashim Pakistan sindh said:
6 years ago
B is correct answer because free electrons are in conduction band. Electrons jump from valence band to conduction band leaving a gap in valence orbit called hole. The hole is the absence of an electron in valence band. Hole current occurs at the valence level.
Sirshendu Mahapatra said:
7 years ago
It is Energy gap.
Shatakshi said:
8 years ago
This gap is a positive energy. Due to this gap, the atom becomes a positive ion. The positive gap created here is called a hole because it is the hole created by the atom that left its place.
Rams said:
9 years ago
Yes. The correct answer is Energy gap (A).
Rucha said:
9 years ago
When an electron jumps from valence shell to conduction band that area of transition through which electron passes is called energy gap.
Manju said:
9 years ago
I agree, the answer should be a) energy gap.
Sumanth punda said:
9 years ago
The answer should be option A) energy gap.
HITESH KASHYAP said:
1 decade ago
Either answer should be energy gap or the Q should be modified.
Harilakshmi said:
1 decade ago
The answer is hole because the question says that the electron moving from conduction band to valency band and it leaves gap in conduction band that gap is hole.
We all known that electron transition creates positive charge of holes. So the answer is hole.
We all known that electron transition creates positive charge of holes. So the answer is hole.
Reshma said:
1 decade ago
Is this forbidden energy gap? The question was not cleared.
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