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Physics · 2022 · 2 marks
Semiconductor Electronics: Materials, Devices and Simple CircuitsClassification of Metals, Conductors and Semiconductors2 marksUnderstandvery short answer
CBSE 2022 · Region 4 · Set 1 · Q1
What is meant by energy band gap in a solid? Draw the energy band diagrams for a conductor, an insulator and a semiconductor.
What is meant by energy band gap in a solid? Draw the energy band diagrams for a conductor, an insulator and a semiconductor.
Marking-scheme solution
The gap between the top of the valence band and bottom of the conduction band is called the energy band gap.
ENERGY BAND DIAGRAM FOR INSULATOR
ENERGY BAND DIAGRAM FOR CONDUCTOR
ENERGY BAND DIAGRAM FOR SEMICONDUCTOR
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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.