Electric-field screening

Electric-field screening is the reduction of an electric field by charges that rearrange or matter that polarizes in response to it, partially counteracting the field.

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Electrostatic induction: The redistribution of electric charge in a material under the influence of an external electric field. Induced surface charges oppose an applied field inside a conductor.
Electric field: A vector field describing the electric force per unit positive charge at each point in space. Screening changes the field produced by a given arrangement of sources.
Electrical double layer: A charge-separated structure at an interface between an electrode or surface and an electrolyte. Its ionic layers screen surface charge and govern interfacial electric fields.
Coulomb interaction: The electrostatic interaction between electric charges, whose potential in vacuum varies inversely with separation. Screening changes this long-range interaction into a weaker, often shorter-range one.
Debye screening: The attenuation of electric potentials in a plasma or electrolyte by rearranged mobile charges. It describes how thermal ions and electrons shield charges over a characteristic distance.
Electric charge: A fundamental property of matter that produces and responds to electromagnetic interactions. Redistributed charges generate the opposing fields responsible for screening.
Debye length: The characteristic screening distance for electrostatic interactions in a plasma or electrolyte. It predicts whether surface or particle charges influence nearby regions of a solution.
Unscreened Coulomb potential: The electrostatic potential of a point charge in vacuum, proportional to inverse distance. It provides the reference behavior that a surrounding medium or mobile charges attenuate.
Thomas–Fermi screening: A model of how mobile electrons in a material respond to an electrostatic potential. It approximates screening by conduction electrons in metals and other electron systems.
Coulomb's law: The law giving the electrostatic force between stationary point charges as proportional to their charge product and inversely proportional to distance squared. It describes the unscreened interaction that charge rearrangement modifies.