An electric potential (also called the electric field potential, potential drop or the electrostatic potential) is the amount of work needed to move a unit of charge from a reference point to a specific point inside the field without producing an acceleration. Typically, the reference point is the Earth or a point at infinity, although any point can be used.

Property Value
dbo:abstract
• An electric potential (also called the electric field potential, potential drop or the electrostatic potential) is the amount of work needed to move a unit of charge from a reference point to a specific point inside the field without producing an acceleration. Typically, the reference point is the Earth or a point at infinity, although any point can be used. In classical electrostatics, the electrostatic field is a vector quantity which is expressed as the gradient of the electrostatic potential, which is a scalar quantity denoted by V or occasionally φ, equal to the electric potential energy of any charged particle at any location (measured in joules) divided by the charge of that particle (measured in coulombs). By dividing out the charge on the particle a quotient is obtained that is a property of the electric field itself. In short, electric potential is the electric potential energy per unit charge. This value can be calculated in either a static (time-invariant) or a dynamic (varying with time) electric field at a specific time in units of joules per coulomb (J⋅C−1), or volts (V). The electric potential at infinity is assumed to be zero. In electrodynamics, when time-varying fields are present, the electric field cannot be expressed only in terms of a scalar potential. Instead, the electric field can be expressed in terms of both the scalar electric potential and the magnetic vector potential. The electric potential and the magnetic vector potential together form a four vector, so that the two kinds of potential are mixed under Lorentz transformations. Practically, electric potential is always a continuous function in space; Otherwise, the spatial derivative of it will yield a field with infinite magnitude, which is practically impossible. Even an idealized point charge has potential, which is continuous everywhere except the origin. The electric field is not continuous across an idealized surface charge, but it is not infinite at any point. Therefore, the electric potential is continuous across an idealized surface charge. An idealized linear charge has potential, which is continuous everywhere except on the linear charge. (en)
dbo:wikiPageID
• 59615 (xsd:integer)
dbo:wikiPageLength
• 14681 (xsd:integer)
dbo:wikiPageRevisionID
• 984996677 (xsd:integer)
dbp:baseunits
• V = kg⋅m2⋅A−1⋅s−3 (en)
dbp:dimension
• M L2 T−3 I−1 (en)
dbp:extensive
• yes (en)
dbp:footer
• Electric potential of separate positive and negative point charges shown as color range from magenta , through yellow , to cyan . Circular contours are equipotential lines. Electric field lines leave the positive charge and enter the negative charge. (en)
• Electric potential in the vicinity of two opposite point charges. (en)
dbp:image
• VFPt charges plus minus potential+contour.svg (en)
• VFPt minus thumb potential+contour.svg (en)
• VFPt plus thumb potential+contour.svg (en)
dbp:name
• electric potential (en)
dbp:otherunits
dbp:symbols
• V, φ (en)
dbp:totalWidth
• 300 (xsd:integer)
dbp:unit
dbp:wikiPageUsesTemplate
dct:subject
rdf:type
rdfs:comment
• An electric potential (also called the electric field potential, potential drop or the electrostatic potential) is the amount of work needed to move a unit of charge from a reference point to a specific point inside the field without producing an acceleration. Typically, the reference point is the Earth or a point at infinity, although any point can be used. (en)
rdfs:label
• Electric potential (en)
rdfs:seeAlso
owl:sameAs
prov:wasDerivedFrom
foaf:isPrimaryTopicOf
is dbo:wikiPageDisambiguates of
is dbo:wikiPageRedirects of