INTRINSIC and EXTRINSIC Semiconductors (in Hindi)

In this Physics video for class 12 we explained, with diagram and formula, what intrinsic semiconductors and extrinsic semiconductors are.

Intrinsic semiconductors are pure semiconductor materials like silicon or germenium.

Extrinsic semiconductors are made by adding impure to intrinsic semiconductor materials like silicon or germenium. The process of muxing impurity is called doping, the impurity is called dopant and the extrinsic semiconductor is also known as doped semiconductor.
There are two types of extrinsic semiconductor, viz., n type and p type semiconductor. When a pentavalent atom is added as impurity, it is known as n type semiconductor and when a trivalent atom is added as impurity, it is known as p type semiconductor.
Extrinsic semiconductor has much more electrical conductivity as compared to the intrinsic semiconductor.

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Physics 12th : Semiconductor Electron...

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