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Electrostatics is a branch of physics that studies slow-moving or stationary electric charges.. Since classical times, it has been known that some materials, such as amber, attract lightweight particles after rubbing.
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 .
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism , both being part of the phenomenon of electromagnetism , as described by Maxwell's equations .
Action at a distance is the concept in physics that an object's motion can be affected by another object without the two being in physical contact; that is, it is the concept of the non-local interaction of objects that are separated in space.
Also, gravitational forces are much weaker than electrostatic forces. [2] Coulomb's law can be used to derive Gauss's law, and vice versa. In the case of a single point charge at rest, the two laws are equivalent, expressing the same physical law in different ways. [6]
physical chemistry, dealing with physical processes and their relations in the science of physical chemistry; physics education, set of methods to teach physics; physical oceanography, is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters
Other equations in physics, such as Gauss's law of the electric field and Gauss's law for gravity, have a similar mathematical form to the continuity equation, but are not usually referred to by the term "continuity equation", because j in those cases does not represent the flow of a real physical quantity.
In physics, charge conservation is the principle, of experimental nature, that the total electric charge in an isolated system never changes. [1] The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved.