A cylinder of radius $R$ and length $L$ is placed in a uniform electric field $E$ parallel to  the cylinder axis. The total flux for the surface of the cylinder is given by-

  • A

    $2 \pi R^2E$

  • B

    $\pi R^2/E$

  • C

    $(\pi R^2/ \pi R)/E$

  • D

    zero

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