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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

`(m l)/(n e ^(2) tA)`

B

`(2 ntA)/(n e^(2)l)`

C

`( n e ^(2)t)/(2m) * (A)/(l)`

D

`( n e^(2) m)/(2 t)*(l)/(A)`

Text Solution

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The correct Answer is:
A
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