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.
Aditi raghav said:
1 decade ago
Its called energy gap.
Shashi said:
1 decade ago
Its holes, when electron jumps from valance band to conduction band there is absence of negative charge which give rise to a positive charge called holes which is nothing but absence of electron.
Sachin lal said:
1 decade ago
But actually for an electron in valence band to jump to the conduction band it has to cross the energy gap. The question was not asked in correct manner. I too vote for energy gap.
Reshma said:
1 decade ago
Is this forbidden energy gap? The question was not cleared.
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.
HITESH KASHYAP said:
1 decade ago
Either answer should be energy gap or the Q should be modified.
Sumanth punda said:
9 years ago
The answer should be option A) energy gap.
Manju said:
9 years ago
I agree, the answer should be a) energy gap.
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.
Rams said:
9 years ago
Yes. The correct answer is Energy gap (A).
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