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← ScienceWhich outcome results when thermal energy reduces a semiconductor's bandgap?
A)Increased electrical conductivity✓
B)Decreased electron mobility
C)Enhanced dielectric breakdown
D)Reduced minority carrier injection
💡 Explanation
Increased electrical conductivity occurs because reduced bandgap enhances thermal excitation of more electrons across the gap contributing additional carriers. Therefore, conductivity increases, rather than electron mobility decreasing which would counteract it, if scattering mechanisms remained fixed.
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