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← ScienceWhich consequence results when the Boltzmann constant significantly decreases in a semiconductor?
A)Increased carrier mobility overall
B)Decreased thermal noise magnitude✓
C)Reduced band gap in material
D)Increased electron-hole recombination
💡 Explanation
Decreased Boltzmann constant reduces the average thermal energy of charge carriers via the mechanism of thermal excitation; therefore, thermal noise decreases because lower thermal energy leads to less random electron motion, rather than altered band gaps or overall mobility.
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