A total charge +Q is distributed over a plastic line in square shape with sides are equal to 2a. The line is so thin that thickness is negligible. The square is positioned to the center. Find the electric field (E =?) at point P which is positioned away from the center (Tp = xpî + Ypĵ ,Xp > av2, yp > av2 and xp, Yp are constant).

A total charge +Q is distributed over a plastic line in square shape with sides are equal to 2a. The line is so thin that thickness is negligible. The square is positioned to the center. Find the electric field (E =?) at point P which is positioned away from the center (Tp = xpî + Ypĵ ,Xp > av2, yp > av2 and xp, Yp are constant).