FACTS ABOUT PNW ELECTRIC REVEALED

Evaluate the Unique situation of a good issue demand q on the origin. To estimate the prospective due to q at a length r with the origin relative into a reference of 0 at infinity (recall that we did the identical for prospective energy), Permit (P = r) and (R = infty), with (dvec l = dvec r = hat r dr) and use (vec E = frac kq r^2 hat r ). When we