12.1 ELECTRIC FORCES
12.1.1 Like Charges Repel, Unlike Charges Attract
12.1.2 Electric Force between Two Point Charges

12.2 ELECTRIC POTENTIAL ENERGY
12.2.1 Why EPE can be Positive and Negative
12.2.2 Derivation of EPE Formula

12.3 ELECTRIC FIELD
12.3.1 Electric Field
12.3.2 Electric Field of a Point Charge

12.4 ELECTRIC POTENTIAL
12.4.1 Electric Potential
12.4.2 Electric Potential of a Point Charge

12.5 ENERGY AND POTENTIAL GRADIENT
12.5.1 Energy and Potential Gradient

12.6 ELECTRIC FIELD MAPPING
12.6.1 Field Lines
12.6.2 Equipotential Lines

12.7 CHARGED CONDUCTORS
12.7.1 Charged Metal Spheres
12.7.2 Charged Metal Parallel Plates

–

For the PDF version, click here.

–

Concept Videos: Click here

Demonstrations: Click here

Applets:
PhET Balloon and Static Electricity: Click here
PhET John Travolta: Click here
PhET Electric Field of Dreams: Click here
PhET Charges and Fields: Click here
PhET Electric Hockey: Click here
Falstad vector (field visualisation): Click here

Supplementary Reading
It’s All Electric: Click here
Electric vs Gravitation: Click here