A cylinder of radius R and length l is placed in a uniform electric field E parallel to the axis of the cylinder. The total flux over the curved surface of the cylinder is

Options

A. `2 pi R^(2) E`
B. `pi R^(2) //E`
C. `(pi R^(2)//pi R)//E`
D. zero

Answer

4

Explanation

`phi = (q_(in))/(in_(0))`
`q_("in") = 0`