A) Carbon
B) Copper
C) Silver
D) Gold
Correct Answer: A
Solution :
Near room temperature, the electric resistance of a typical metal conductor increases linearly with temperature. \[R={{R}_{0}}(1+\alpha T)\] For example; copper, silver, gold. The electric resistance of a typical intrinsic semiconductor decreases exponentially with temperature. \[R={{R}_{0}}{{e}^{a/T}}\] For example; carbon.
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