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← ScienceWhich consequence results when thermal lattice vibrations exceed levels enabling electron mobility in silicon?
A)Increased material electrical resistance✓
B)Increased frequency of Bloch oscillations
C)Diminished rate of phonon propagation
D)Reduced rate of electron tunneling
💡 Explanation
Increased lattice vibration disrupts the periodic potential because electron mobility and lower potential energies depend on a well-defined band structure; therefore, resistance increases rather than the described alternatives. Phonon propagation and tunneling effects still permit an insulated state.
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