What is electric potential?

Electric Potential

In classical electromagnetism, the electric potential (a scalar quantity denoted by φ, φE or V and also called the electric field potential or the electrostatic potential) at a point is equal to the electric potential energy (measured in joules) of a charged particle at that location divided by the charge (measured in coulombs) of the particle. The electric potential is independent of the test particle's charge - it is determined by the electric field alone. The electric potential can be calculated at a point in either a static (time-invariant) electric field or in a dynamic (varying with time) electric field at a specific time, and has the units of joules per coulomb, or volts.

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Some articles on electric potential:

Electric Potential - Galvani Potential Versus Electrochemical Potential
... the energy of an electron is affected not only by the electric potential, but also by the specific atomic environment that it is in ... When a voltmeter is connected between two different types of metal, it measures not the electric potential difference, but instead the potential difference corrected for the different ... by a voltmeter is called electrochemical potential or fermi level, while the pure unadjusted electric potential is sometimes called Galvani potential ...
Mathematical Descriptions Of The Electromagnetic Field - Potential Field Approach - Gauge Freedom - Coulomb Gauge
... Firstly, solving for the electric potential is very easy, as the equation is a version of Poisson's equation ... Secondly, solving for the magnetic vector potential is particularly difficult ... which is not immediately obvious, is that the electric potential changes instantly everywhere in response to a change in conditions in one locality ...
Mathematical Descriptions Of The Electromagnetic Field - Potential Field Approach
... Many times in the use and calculation of electric and magnetic fields, the approach used first computes an associated potential the electric potential, V, for the electric field, and the magnetic ... The electric potential is a scalar field, while the magnetic potential is a vector field ... This is why sometimes the electric potential is called the scalar potential and the magnetic potential is called the vector potential ...
Magnetic Potential
... The term magnetic potential can be used for either of two quantities in classical electromagnetism the magnetic vector potential, A, (often simply called ... The more frequently used magnetic vector potential, A, is defined such that the curl of A is the magnetic B field ... Together with the electric potential, the magnetic vector potential can be used to specify the electric field, E as well ...

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