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If n, e, tau, m, are representing electr...

If n, e, `tau`, m, are representing electron density charge, relaxation time and mass of an electron respectively then the resistance of wire of length 1 and cross sectional area A is given by

A

`(ml)/(n e^(2)tauA)`

B

`(2mA)/(n e^(2)tau)`

C

`n e^(2)tauA`

D

`(n e^(2)tauA)/(2m)`

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A
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