Coulomb's law

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Related to Electrical force: gravitational force, magnetic force

Coulomb's law

Etymology: Charles A. de Coulomb
(in physics) a law stating that the force of attraction or repulsion between two electrically charged bodies is directly proportional to the strength of the electrical charges and inversely proportional to the square of the distance between them.
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Equation 1 indicates that the electrical force is increased with increasing nozzle diameter, whereas the electrical stress normalized by the cross-sectional area of the nozzle is decreased with the fixed needle length of 30 mm, as shown in Fig.
The repulsive electrical forces between the charged fibers spread them smoothly on the grounded aluminum sheet so that a nonwoven fabric was formed.
The company's patented technology represents the commercialization of groundbreaking research performed at Lawrence Livermore National Laboratory in the area of enhancing filter performance through electrical forces.
The allowed patent applications are entitled: Apparatus and Method for Performing Microfluidic Manipulations for Chemical Analysis and Synthesis (two applications); Electropipetor and Compensation Means for Electrophoretic Bias (two applications); and Variable Control of Electroosmotic and Electrophoretic Forces in a Fluid Containing Structure Via Electrical Forces.
To circumvent this problem, Frank has proposed that the snowballs are covered with a carbon skin that keeps them from vaporizing until they get within 2,000 kilometers of Earth, close enough for gravity or electrical forces to tear them apart.
Generated in response to weak electrical forces or small temperature changes, these arrangements alter the way in which light passes through the material, making visible the letters one sees.
The niobium layer becomes a superconductor at liquid helium temperatures, allowing the balls to be suspended in space by electrical forces.
The cells are sufficiently far apart that practically no electron tunneling occurs between dots of adjacent cells, but electrical forces between the cells enable one to influence another.
In fact, the DNA supercoil is a carefully articulated knot that ties itself up according to rules governing its geometry and electrical forces acting on it from the liquid surroundings.
Physicists still do not understand fully all the processes that can go on when countless charged particles, driven by attractive and repulsive electrical forces, jostle one another.
The electrical forces both "pumped" the sample through the channels and teased out the various amino acids.
It's hard to imagine how the force of gravity - normally associated with baseballs, planets, and galaxies- could possibly have a perceptible effect on the motion of electrons in an atom, where quantum mechanics and electrical forces reign.