Objects can have stationary extra surface charges {static electricity}|. Electric charge is on material surface, because electrons repel each other to farthest points. More charges are at higher-curvature surface points, because repulsions are less where average distances are more. Sparks, van de Graaf generators, pith balls, cloths and rods, and electroscopes demonstrate static electricity.
Physical Sciences>Physics>Electromagnetism>Charge
5-Physics-Electromagnetism-Charge
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224