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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

`(m tau^(2)A)/(n e^(2)l)`

C

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

D

`(n e^(2)A)/(2mtaul)`

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The correct Answer is:
A
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