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प्रश्न
Which of the following oxides behaves as conductor or insulator depending upon temperature?
पर्याय
TiO
SiO2
TiO3
MgO
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उत्तर
TiO3
Explanation:
TiO3 behaves as conductor or insulator depending on temperature because of variation of energy gap between valence band and conduction band with the variation of temperature.
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संबंधित प्रश्न
In a semiconductor, acceptor impurity is.................................
- antimony
- indium
- phosphorous
- arsenic
When a hole is produced in P-type semiconductor, there is _______.
Give reasons : Silicon on doping with Phosphorous forms 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:
Which transition metal oxide has appearance and conductivity like that of copper?
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 is true about the charge acquired by p-type semiconductors?
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.
A perfect crystal of silicon (Figure) is doped with some elements as given in the options. Which of these options show n-type semiconductors?
How does the doping increase the conductivity of semiconductors?
