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प्रश्न
Answer the following giving reasons:
Impurities are added to intrinsic semiconductors.
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उत्तर
To improve a semiconductor's electrical conductivity, impurities are added. Doping is the process of introducing impurities into semiconductors to improve their electrical conductivity; these impurities are referred to as intrinsic semiconductors.
संबंधित प्रश्न
Let nh and ne be the number of holes and conduction electrons respectively in a semiconductor. Then ______.
What is meant by doping of an intrinsic semiconductor?
Name the two types of atoms used for doping of Ge/Si.
A pure semiconductor has equal electron and hole concentration of 1016 m-3. Doping by indium increases nh to 5 × 1022 m-3. Then, the value of ne in the doped semiconductor is ______.
Identify the WRONG statement from the following. In an intrinsic semiconductor ______.
What happens when some valence electrons gain enough energy as temperature increases?
What is the band occupancy of an intrinsic semiconductor at 0 K?
What must electrons cross to become free charge carriers as the temperature rises?
What does a classroom in which every student is seated represent in the description of a semiconductor at very low temperature?
What do a moving student and a vacant seat represent when an electron moves into the conduction band?
