yarahatimm6972 yarahatimm6972

09-01-2024
Physics

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Electrical conductivities of Ge and Na are σ1 and σ2 respectively. if these substances are cooled then :-
A. σ1 Decreases and σ2 increases
B. Both σ1 and σ2 decreases
C. Both σ1 and σ2 increases
D. σ1 increases and σ2 descreases

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