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प्रश्न
Which of the following is true about the charge acquired by p-type semiconductors?
विकल्प
Positive
Neutral
Negative
Depends on concentration of p impurity
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उत्तर
Neutral
Explanation:
p-type semiconductors by itself has mainly positively charged carriers (holes) which are able to move freely. It is however, still netural because the fixed acceptor atoms having accepted electrons are negative.
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संबंधित प्रश्न
p - type semi-conductors are made by mixing silicon with impurities of ______.
In a semiconductor, acceptor impurity is.................................
- antimony
- indium
- phosphorous
- arsenic
What type of semiconductor is obtained when silicon is doped with boron?
To prepare n-type semiconductor the impurity to be added to silicon should have the following number of valence electrons:
(a) 2
(b) 3
(c) 4
(d) 5
When a hole is produced in P-type semiconductor, there is _______.
A pure semiconductor is ________.
(a) an extrinsic semiconductor
(b) an intrinsic semiconductor
(c) p-type semiconductor
(d) n-type semiconductor
What is the ratio of octahedral holes to the number of anions in hexagonal closed packed structure?
A group of 14 elements is converted into n-type semiconductor by doping it with:
Group 14 element is converted to p-type semiconductor by doping it with:
To get n-type of semiconductor, germanium should be doped with ____________.
p-type semiconductors are formed when Si or Ge are doped with ____________.
Which of the following oxides behaves as conductor or insulator depending upon temperature?
To get a n-type semiconductor from silicon, it should be doped with a substance with valence ______.
Under the influence of electric field, which of the following statements is true about the movement of electrons and holes in a p-type semiconductor?
(i) Electron will move towards the positvely charged plate through electron holes.
(ii) Holes will appear to be moving towards the negatively charged plate.
(iii) Both electrons and holes appear to move towards the positively charged plate.
(iv) Movement of electrons is not related to the movement of holes.
How does the doping increase the conductivity of semiconductors?
