Physics

Problem

Five point charges,

+q

each, are placed at the five vertices of a regular hexagon. The distance of the center of the hexagon from any of the vertices is

a

. The electric field at the center of the hexagon is (1)

\frac{q}{4\pi\epsilon_0 a^2}

(2)

\frac{q}{8\pi\epsilon_0 a^2}

(3)

\frac{q}{16\pi\epsilon_0 a^2}

(4) zero