A thin nonconducting rod with a uniform distribution of positive charge Qis bent into a circle of radius R (see the figure). The central perpendicular axis through the ring is az axis, with the origin at the center of the ring What is the magnitude of the electric field due to the rod at (a) 2-0 and (b) z-? (c) In terms of R, at what positive value of 2 is that magnitude maximum? (d) If R-2.21 cm and Q-4.18 UC, what is the maximum magnitude? (a) Number (b) Number (c) Number Units

A thin nonconducting rod with a uniform distribution of positive charge Qis bent into a circle of radius R (see the figure). The central perpendicular axis through the ring is az axis, with the origin at the center of the ring What is the magnitude of the electric field due to the rod at (a) 2-0 and (b) z-? (c) In terms of R, at what positive value of 2 is that magnitude maximum? (d) If R-2.21 cm and Q-4.18 UC, what is the maximum magnitude? (a) Number (b) Number (c) Number Units