KCET · Physics · Current Electricity
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
- A increases, thermal velocity of the electron decreases
- B decreases, thermal velocity of the electron decreases
- C increases, thermal velocity of the electron increases
- D decreases, thermal velocity of the electron increases
Answer & Solution
Correct Answer
(D) decreases, thermal velocity of the electron increases
Step-by-step Solution
Detailed explanation
With rise in temperature the thermal velocity of the electron increases. Relaxation time and hence drift velocity will decrease.
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