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Resistivity of the material of a conduct...

Resistivity of the material of a conductor of uniform cross-section varies along its length as `rho=rho_(0)(1+alphax)`. Find the resistance of the conductor, if its length is l and area of corss-section A.

A

`(rho_(0)l)/(A)[1+(alpha l)/(2)]`

B

`(rho_(0)l)/(A)[1+alpha l]`

C

`(rho_(0)l)/(A)[1+(alphal^(2))/(2)]`

D

`(rho_(0)l)/(A)[1+2alphal]`

Text Solution

Verified by Experts

The correct Answer is:
A
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