An?intrinsic semiconductor?is an undoped semiconductor. This means that holes in the valence band are vacancies created by electrons that have been thermally excited to the conduction band, as opposed to doped?semiconductors?where holes or electrons are supplied by a ?foreign? atom acting as an impurity.
22) When the conductivity of a semiconductor is only due to breaking of the covalent bonds, the semiconductor is called
Answer is:
intrinsic
Explanation:
Related Electronic Devices and Communication MCQ with Answers
Answer is:
Trivalent substance
Explanation:
A small impurity is added to germanium to get p-type semiconductor. This impurity is a Trivalent substance
Answer is:
In
Explanation:
To obtain a p-type germanium semiconductor, it must be doped with As
Answer is:
B
Explanation:
The impurity atoms with which pure silicon should be doped to make a p-type semiconductor are those of B
Answer is:
n-type semiconductor
Explanation:
When arsenic is added as an impurity to silicon, the resulting material is n type semiconductor