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Temperature dependence of resistivity p(...

Temperature dependence of resistivity p(T) of semiconductors, insulators and metals is significantly based on the following factors:

A

Numbr of charge carriers can change with temperature T

B

time interval between two successie collisions can depend of T

C

length of material can be a function of T

D

mass of carriers is a function of T.

Text Solution

Verified by Experts

The correct Answer is:
A, B
The resistivity of a metallic conductor is given by
`e=(m)/(m e^(2)tau)`
When n is number of charge carriers per unit volume which can change with temperature T and `tau` is time interval between two successive collisions which decreases with the increase of temperature.
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