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

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits2 Marks
Question
Distinguish between 'intrinsic' and 'extrinsic' semiconductors.
✓

Answer

Intrinsic Semiconductor Extrinsic Semiconductor
(i) Without any impurity atoms. (i) Doped with trivalent/pentavalent impurity atoms.
(ii) $\text{n}_{e} =\text{n}_{h}$ (ii) $\text{n}_{e} \neq \text{n}_{h}$

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