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A metal wire is subjected to a constant ...

A metal wire is subjected to a constant potential difference When the temperaturre of the metal in it wire increase the drift velocity of the electrons in it .

A

increase, thermal velocity of the electrons decrease

B

decrease, thermal velocity of the electrons decrease

C

increase, thermal velocity of the electrons increase

D

decrease, thermal velocity of the electrons increase

Text Solution

Verified by Experts

The correct Answer is:
d
With increase in temperature relaxation line time `t` decrease hence drift velocity `v_(d)` which is directly proportional in relaxation time `(v_(d) = tau)` decrease but thermal velocity increases
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