2 higure shows two parallel nonconducting rings with their central axes along common line. Ring 1 has uniform 2+)) a and radius R ving 2 charge 1, has uniform charge q, and the same radius R. The rigs nings R P are separated by a distance d. The net electric field at point P on the common line, at dist ance R from ring 1, is gero. What is the tatio 9,/9, at P ? d= 3R] if we place a point change of 1 uc, in which direction it will move left ward or , nightward?