A square surface of side L metre in the w plane of the paper is placed in a uniform electric field E (volt/m) acting along the same plane at an angle $\mathrm{\theta }$ with the horizontal side of the square as shown in Fig. 2.117. The electric flux linked to the surface, in units of volt-m is :

• A

  Zero

• B

  ${\mathrm{EL}}^2$

• C

  ${\mathrm{EL}}^2\mathrm{cos\theta }$

• D

  ${\mathrm{EL}}^2 \mathrm{sin\theta }$