Physics

Problem

A cylindrical solid of length

L

and radius

a

is having varying resistivity given by

\rho=\rho_0 x

where

\rho_0

is a positive constant and

x

is measured from left end of solid. The cell shown in the figure is having emf

V

and negligible internal resistance. The electric field as a function of

x

is best described by: ![](https://storage.googleapis.com/diraq-contents/PROD/homework-question-parsing/marker/6122ba3d25624bdf80c32f6bd1e2aecf/9050cbaeeac98e1e7fe50c30b07d29ff_img.jpg) (a)

\frac{2V}{L^2}\times x

(b)

\frac{2V}{\rho_0L^2}\times x

(c)

\frac{V}{L^2}\times x

(d) None of these

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