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← ScienceWhich behavior results when thermally exciting electrons across the band gap?
A)Increased electrical conductivity✓
B)Decreasing atomic radii
C)Enhanced diamagnetic susceptibility
D)Phase transition to superconductivity
💡 Explanation
Thermally exciting electrons across the band gap generates electron-hole pairs; the increased carrier concentration causes increased electrical conductivity because conductivity depends carrier density via increased charge transport; therefore conductivity is increased rather than other properties.
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