Use the Chop-Multiply-Add process, showing all steps, to find the electric potential in the situations described below. A distance z above the center of a ring of radius R that lies in the xy-plane centered on the origin (see HW2). At the point (0,h) near each of the following wires that lies along the x-axis from -L to L. Wire A has charge density \lambda _(A)(x)=+\alpha x^(2). Wire B has charge density \lambda _(B)(x)=+\beta cos(\pi (x)/(2)L). Wire C has uniform charge density +\lambda _(c).
