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← ScienceWhich mechanism causes increased voltage drop across crystal defects?
A)Increased electron-phonon scattering✓
B)Enhanced electron-electron interactions
C)Elevated crystal lattice temperature
D)Impurity band formation increase
💡 Explanation
Increased electron-phonon scattering occurs because crystal defects disrupt the periodicity of the lattice, therefore increasing the chances of electrons colliding with lattice vibrations (phonons), rather than alternative coherent transport phenomena that would allow free movement.
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