A thin rod with a uniform charge density p (unit C/m) is in the form of a circle segment as shown in the figure. The radius of the circle is R and its center is at the origin. Find the electric field (E) at the origin. Give your answer in terms of (ε, R, p, Ɵ1, Ɵ2, x, y, z, î, j, k(unit vectors)).

A thin rod with a uniform charge density p (unit C/m) is in the form of a circle segment as shown in the figure. The radius of the circle is R and its center is at the origin. Find the electric field (E) at the origin. Give your answer in terms of (ε, R, p, Ɵ1, Ɵ2, x, y, z, î, j, k(unit vectors)).