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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

A

` EL^(2)`

B

`EL^(2) costheta`

C

`EL^(2) sintheta`

D

zero

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