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Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it can move away by an electric current or electrical discharge . The word "static" is used to differentiate it from current electricity , where an electric charge flows through an electrical conductor .
If the electric field in a system can be assumed to result from static charges, that is, a system that exhibits no significant time-varying magnetic fields, the system is justifiably analyzed using only the principles of electrostatics. This is called the "electrostatic approximation". [12]
Electrostatic discharge (ESD) is a sudden and momentary flow of electric current between two differently-charged objects when brought close together or when the dielectric between them breaks down, often creating a visible spark associated with the static electricity between the objects.
chemical physics A branch of chemistry and physics that studies chemical processes from the point of view of physics by investigating physicochemical phenomena using techniques from atomic and molecular physics and condensed matter physics. chromatic aberration circular motion classical mechanics. Also called Newtonian mechanics.
The surface is the only location where a net electric charge can exist. [4]: p.754 This establishes the principle that electrostatic charges on conductive objects reside on the surface of the object. [3] [7] External electric fields induce surface charges on metal objects that exactly cancel the field within. [3]
Polarization density, general description of the physics of polarization; Static electricity, electric charge often but not always due to triboelectricity; Tribology, science of friction, lubrication and wear; Triboluminescence, light associated with sliding or contacts; Work function, the energy to remove an electron from a surface
Many methods exist for neutralizing static electricity, varying in use and effectiveness depending on the application. Antistatic agents are chemical compounds that can be added to an object, or the packaging of an object, to help deter the buildup or discharge of static electricity. [ 3 ]
An example of static cling; styrofoam peanuts clinging to a cat's fur, due to the charge of static electricity that builds up on the fur due to the cat's motions. Static cling is the tendency for light objects to stick (cling) to other objects owing to static electricity. It is common in clothing, but occurs with other items, such as the ...