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The temperature dependence of resistance...

The temperature dependence of resistance of Cu and undoped Si in the temperature range `300 -400 K, ` is best described by :

A

Linear increase for Cu, exponential decrease of Si.

B

Linear decrease for Cu, linear decrease for Si.

C

Linear increase for Cu, linear increase for Si.

D

Linear increase for Cu, exponential increase for Si.

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The correct Answer is:
A
(a)
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