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Which failure mode results when electrons fill a band at high temperatures in a semiconductor strain gauge?

A)Reduced gauge factor sensitivity
B)Increased piezoelectric responsiveness
C)Enhanced quantum tunneling occurs
D)Spurious thermoelectric voltage appears

💡 Explanation

Reduced gauge factor sensitivity occurs because at high temperatures, increased electron population in the conduction band weakens the effect of mechanical strain on the energy band structure via band filling, therefore sensitivity decreases rather than alternate effects because gauge factor depends critically on energy band structure influence by strain.

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