Question

A long cylindrical volume $($or radius $R\left)\right)$ contains a uniformly distributed charge of density $\rho$. Variation of electric field at a distnace $x$ from axis is shown by

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

$E.2\pi xl=\rho \pi x^{2}l/{\epsilon }_0$
$E=\frac{\rho x}{2{\epsilon }_0}$