(Solved): Find an expression for the magnitude of the electric field at point A midway between the two rings ...

Find an expression for the magnitude of the electric field at point A midway between the two rings of radius R shown in the figure below. The ring on the left has a uniform charge q? and the ring on the right has a uniform charge 92. The rings are separated by distance d. Assume the positive x axis points to the right, through the center of the rings. (Use any variable or symbol stated above along with the following as necessary: k for Coulomb's constant. Assume q1 is greater than 92, and that both charges are positive.) E= 91 ÎË A -d/2d/2-