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On increasing the temperature of a condu...

On increasing the temperature of a conductor, its resistance increases because

A

Relaxation time increases

B

Mass of electron increases

C

Electron density decreases

D

Relaxation time decreases

Text Solution

Verified by Experts

The correct Answer is:
D
`rho = m/("ne"^(2)tau), R = (rhol)/A`
`R prop 1/tau` as `T uarr tau darr R uarr`
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