An electric field can be created by a single charge or a distribution of charges. the electric field a distance r from a point charge q′ has magnitudee=k|q′|r2.the electric field points away from positive charges and toward negative charges. a distribution of charges creates an electric field that can be found by taking the vector sum of the fields created by individual point charges. note that if a charge q is placed in an electric field created by q′, q will not significantly affect the electric field if it is small compared to q′.imagine an isolated positive point charge with a charge q (many times larger than the charge on a single electron).part a