X-Nico

2 unusual facts about electric charge


Electric charge

One of the foremost experts on electricity in the 18th century was Benjamin Franklin, who argued in favour of a one-fluid theory of electricity.

Coulomb's law quantifies the electrostatic force between two particles by asserting that the force is proportional to the product of their charges, and inversely proportional to the square of the distance between them.


Charles-Augustin de Coulomb

He discovered an inverse relationship of the force between electric charges and the square of its distance, later named after him as Coulomb's law.

Force-directed graph drawing

Typically, spring-like attractive forces based on Hooke's law are used to attract pairs of endpoints of the graph's edges towards each other, while simultaneously repulsive forces like those of electrically charged particles based on Coulomb's law are used to separate all pairs of nodes.

P system

Some P system variants allow for a membrane to divide, possess a charge or have varying permeability by changing membrane thickness.

P-process

Such proton captures on stable nuclides (or nearly stable), however, are not very efficient in producing p-nuclei, especially the heavier ones, because the electric charge increases with each added proton, leading to an increased repulsion of the next proton to be added, according to Coulomb's law.

Versorium

The versorium (Latin "turn around") was the first crude electroscope, the first instrument that could detect the presence of static electric charge.


see also

Electroscope

Electroscopes detect electric charge by the motion of a test object due to the Coulomb electrostatic force.

Liénard

Liénard–Wiechert potential describes the electromagnetic effect of a moving electric charge

Nitrogen laser

After some time the electric charge in the avalanche becomes so large that following Coulomb's law it generates an electric field as large as the external electric field.

Procedural surface

This approach is commonly used by structural chemists and was defined by van der Waals when defining a region of space where the electric charge equipotential surface had a definite value.