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 increases
B. decreases, thermal velocity of the electron increases
C. increases, thermal velocity of the electron decreases
D. decreases, thermal velocity of the electron decreases
Answer:B
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 increases B. decreases, thermal velocity of the electron increases C. increases, thermal velocity of the electron decreases D. decreases, thermal velocity of the electron decreases