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Which process causes increased electrical resistance when applying strain to a metal?

A)Piezo-resistance via electron band distortion
B)Increased electron-phonon scattering effects
C)Thermionic emission across atomic boundaries
D)Quantum tunneling between potential wells

💡 Explanation

Applying strain distorts the metallic crystal lattice, reducing symmetry. This decreases the electronic band overlap because it alters the orbital hybridization, leading to piezo-resistance, therefore current flow becomes more difficult rather than enhanced quantum tunneling.

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