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Physics · 2022 · 2 marks
Semiconductor Electronics: Materials, Devices and Simple CircuitsExtrinsic Semiconductor2 marksRemembervery short answer
CBSE 2022 · Region 3 · Set 1 · Q1
What is meant by doping of an intrinsic semiconductor? Name the two types of atoms used for doping of Ge / Si.
What is meant by doping of an intrinsic semiconductor ? Name the two types of atoms used for doping of $\displaystyle \mathrm{Ge} / \mathrm{Si}$.
Marking-scheme solution
Doping is the process of adding some external impurity atoms in an intrinsic semiconductor to increase its conductivity.
Dopant atoms may be pentavalent or trivalent.
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CBSE Class 12 Physics past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.