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Tardigrade
Question
Physics
A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, the drift velocity of the electron in it
Q. A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, the drift velocity of the electron in it
5403
185
KCET
KCET 2008
Current Electricity
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A
increases, thermal velocity of the electron decreases
23%
B
decreases, thermal velocity of the electron decrease
20%
C
increases, thermal velocity of the electron increases
34%
D
decreases, thermal velocity of the electron increases
23%
Solution:
With rise in temperature the thermal velocity of the electron increases. Relaxation time and hence drift velocity will decrease.