12.1.1
Like Charges Repel, Unlike Charges Attract
0000

12.1.2
Electric Force between Two Point Charges
2201    2202    2203    2204   

12.2.1
Why EPE can be Positive and Negative
0000

12.2.2
Derivation of EPE Formula
2205    2206   2223    

12.3.1
Electric Field
2211   

12.3.2
Electric Field of a Point Charge
2207    2208    2209    2210    

12.4.1
Electric Potential
2218    2219    2220   2224    2226   

       
12.4.2
Electric Potential of a Point Charge
2212    2213    2214    2215    2216    

12.5.1
Energy and Potential Gradient
2222    2227    2228    2229    2232    2235    2236    2237   

12.6.1
Field Lines
2221    2225    

12.6.2
Equipotential Lines
2217    2233    2234           

12.7.1
Charged Metal Spheres
2238    2239    2240    2241   

12.7.2
Charged Metal Parallel Plates
2230    2231    2242    2243    2247    2249    2250   |    2244    2245    2246    2248