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  4. 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

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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

KCETKCET 2008Current Electricity

Solution:

With rise in temperature the thermal velocity of the electron increases. Relaxation time and hence drift velocity will decrease.