Homework 22.27


Figure 22-51
In Fig 22-51 two curved plastic rods, one of charge + q and the other of charge - q, form a circle of radius R = 8.50 cm in an xy plane. The x axis passes through both of the connecting points, and the charge is distributed uniformly on both rods. If q = 15.0 pC,, what are the

  1. magnitude and

  2. direction (relative to the positive direction of the x axis) of the electric field E produced at P, the center of the circle?