A square surface of side `L` metre in the plane of the paper is placed in a uniform electric field `E ("volt"//m)` acting along the same place at an anlge `theta` with the horizontal side of the square as shown in figure. The electric flux linked to the surface in uint of `V-m` is

Options

A. `EL^(2)`
B. `EL^(2) cos theta`
C. `EL^(2) sin theta`
D. 0

Answer

D

Explanation

Flux of electric Field `vec(E )` through any area `Å` defined as `phi= E.A cos theta` or `phi= vec(E ).vec(A)= 0` the line are parallel to the surface.