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Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits2 Marks
Question
Write two points of difference between intrinsic and extrinsic semiconductors.
✓

Answer

Intrinsic Extrinsic
i. Pure semiconductor. i. Doped or impure.
ii. 𝑛𝑒 = 𝑛ℎ. ii. 𝑛𝑒 ≠ 𝑛ℎ.
iii. Low conductivity at room temperature. iii. Higher conductivity at room temperature.
iv. Conductivity depends on temperature. iv. Conductivity does not dependm significantly on temperature.

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