~ quick concept tests
# baseline practice questions
* higher-order-thinking questions

12.1.1
Like Charges Repel, Unlike Charges Attract
2251~

12.1.2
Electric Force between Two Point Charges
2201~    2202#    2203    2204*   

12.2.1
Why EPE can be Positive and Negative
2252~

12.2.2
Derivation of EPE Formula
2205~    2206#   2223*    

12.3.1
Electric Field
2253~  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
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
2222    2230    2231#    2242~    2243*    2246    2245    2244    
Kinematics
2247~    2249*    2248#  2250*