2. A ring of radius a has a total charge +Q distributed uniformly around its circumference. As shown in Figure l, the point P is on the axis of the ring at a distance b from the center of the ring. a) On Figure I above, show the direction of the electric field at point P. Figure I b) Determine the magnitude of the electric field intensity at point P.

2. A ring of radius a has a total charge +Q distributed uniformly around its circumference. As shown in Figure l, the point P is on the axis of the ring at a distance b from the center of the ring. a) On Figure I above, show the direction of the electric field at point P. Figure I b) Determine the magnitude of the electric field intensity at point P.