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← ScienceWhich outcome results when dislocations impede free electron flow within a metal crystal lattice?
A)Increased electrical resistance occurs✓
B)Enhanced thermal conductivity results
C)Superconductivity behavior can emerge
D)Hall effect voltage approaches zero
💡 Explanation
Increased electrical resistance is observed due to decreased electron mobility. Because dislocations act as scattering points for electrons, they decrease the mean free path within the metal via phonon scattering, therefore reducing conductivity, rather than enhancing heat transfer.
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