+ + + 1) Charged ring: In the figure, a ring 0.71 m in radius carries a charge of +-580 nC uniformly distributed over it. A point charge Q is placed at the center of the ring. The electric field is equal to zero at field point P. which is on the axis of the ring, and 0.73 m from its center. (80 = 8.85 10-12 C2/N m2) The point charge O is closest to + Ering K Epoint K Qooint 2 + + + + Ering Epaint Quing X KJ+R k. Qpoint x