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प्रश्न
What is meant by doping of an intrinsic semiconductor?
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उत्तर
The mixing of a small amount of pentavalent (e.g. phosphorus) or trivalent (e.g. aluminium) substance as an impurity in a pure semiconductor (e.g., Ge, Si) is called doping.
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संबंधित प्रश्न
Let np and ne be the numbers of holes and conduction electrons in an extrinsic semiconductor.
Answer in detail.
Distinguish between intrinsic semiconductors and extrinsic semiconductors.
Let nh and ne be the number of holes and conduction electrons respectively in a semiconductor. Then ______.
In a semiconductor, the number of holes and number of free electrons are represented as 'nh' and 'ne' respectively. Which one of the following statements is TRUE for the semiconductor?
Explain the following term:
Intrinsic semiconductor
Hole is ______.
Two crystals C1 and C2, made of pure silicon, are doped with arsenic and aluminium respectively.
Why is doping of intrinsic semiconductors necessary?
Name the two types of atoms used for doping of Ge/Si.
- Assertion (A): The resistance of an intrinsic semiconductor decreases with an increase in its temperature.
- Reason (R): The number of conduction electrons as well as hole increase in an intrinsic semiconductor with the rise in its temperature.
Identify the WRONG statement from the following. In an intrinsic semiconductor ______.
