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← ScienceWhich conduction behavior occurs when temperature increases in intrinsic semiconductors?
A)Band gap reduction increases conductivity✓
B)Electron mobility remains permanently unchanged
C)Recombination rate proportionally decreases holes
D)Fermi level shifts towards valence band
💡 Explanation
The increased temperature provides energy for more electrons to jump the band gap via Thermal excitation, therefore band gap reduction increases conductivity, rather than Fermi level changes or simple mobility increases because free carriers exponentially increase in semiconductors.
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