DETAILED NOTES ON RAZOR

Evaluate the Particular case of a favourable issue charge q with the origin. To calculate the probable due to q in a length r from your origin relative into a reference of 0 at infinity (remember that we did exactly the same for prospective Vitality), Permit (P = r) and (R = infty), with (dvec l = dvec r = hat r dr) and use (vec E = frac kq r^two h