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A cylindrical conductor has length l and...

A cylindrical conductor has length `l` and area of cross section A. Its conductivity changes with distance `(x)` from one of its ends as `sigma = sigma_(0) (l)/(x). [sigma_(0) "is a constant"]`. Calculate electric field inside the conductor as a function of `x`, when a cell of emf V is connected across the ends.

A

`(2Vx)/l^2`

B

`(3sqrtl)/(3Asigma_(0))`

C

`(sqrtl)/(3Asigma_(0))`

D

`(4sqrtl)/(3Asigma_(0))`

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The correct Answer is:
A
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