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Which mechanism causes increased resistance when electrons scatter within metallic lattice structures?

A)Decreased phonon mean free path
B)Increased defect density formation
C)Reduced Fermi surface curvature
D)Enhanced band structure nesting

💡 Explanation

Increased defect density raises resistance because it enhances electron-lattice collisions and causes increased electron scattering. Therefore, resistance increases rather than diminishes, because increased phonon scattering affects thermal conductivity, not electrical due to defects directly interacting with the electronic band structure.

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