1 PH 112 Electric field II 1/11/2005 Name_________________ Box___ F = k qq'/r2. Coulomb's law says that the force magnitude between charges is Electric field is force/charge. A charge q in an electric field E feels a force E = kq/r2 ( point charge). Thus from a point charge q we have an electric field magnitude +3 C y x 10 m -2 C 8m 5m 6m p 3m 4m Calculate the x and y components of the total electric field at point p ( calculate Ex and Ey )due to the two point charges shown. Draw arrows and label them. Find individual magnitudes. Find components due to each charge. Add components to get total. F = qE.