A square surface of side L meter in the plane of the

A square surface of side L meter in the plane of the paper is placed in a uniform electric field E (volt/m) acting along the same plane at an angle θ with the horizontal side of the square as shown in Figure. The electric flux linked to the surface, in units of volt. m, is

Electric flux , φ = EA cos θ , where θ = angle between E and normal to the surface.

θ =	π
	2

⇒ φ = 0