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← ScienceWhich outcome occurs when an aluminum conductor cable experiences sustained tensile stress near its yield strength?
A)Increased electrical resistance✓
B)Reduced thermal conductivity
C)Decreased tensile strength
D)Enhanced corrosion resistance
💡 Explanation
When tensile stress approaches the yield strength, plastic deformation occurs because the aluminum lattice structure permanently distorts, increasing the number of electron scattering sites. Therefore increased resistance results, rather than conductivity changes, strength decrease, or corrosion changes which require different mechanisms.
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