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Which consequence results when point defects induce band gaps within a semiconducting crystal?

A)Increased electrical resistivity occurs overall
B)Enhanced thermal conductivity becomes evident
C)Increased optical transparency is measurable
D)Material density will noticeably decrease

💡 Explanation

Introducing point defects alters the semiconductor's electronic structure, because defect-induced state formation modifies the band structure leading to changes in the Density of States. Therefore, electrical resistivity increases because electron transport is impeded, rather than thermal conductivity increases due to lattice vibrations.

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