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A thin straight infinitely long conduction wire having charge density $\lambda$ is enclosed by a cylindrical surface of radius $r$ and length $I,$ its axis coinciding with the length of the wire. Find the expression for the electric flux through the surface of the cylinder.

1 Answer

$\phi= \large\frac{\lambda l}{\in_0}$ is correct.
Hence C is the correct answer.
answered Jun 3, 2014 by meena.p

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