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Physics

Energy Bands in Solids

ठोसों में ऊर्जा बैंड

This Class 12 Physics topic explains how closely spaced atomic energy levels form energy bands in a solid. Students learn to distinguish the valence band, conduction band and forbidden energy gap, and understand how the size of this gap determines whether a material behaves as a conductor, insulator or semiconductor. The topic builds the foundation for studying semiconductor materials, charge transport, doping and the operation of electronic devices in Chapter 14: Semiconductor Electronics: Materials, Devices and Simple Circuits.

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