IEVref: 121-11-62 ID: Language: en Status: Standard Term: Maxwell equations Synonym1: Synonym2: Synonym3: Symbol: Definition: set of equations relating the four vector quantities determining the electromagnetic field in a material medium or in vacuum and the two quantities electric current density and volumic electric charge NOTE 1 – The Maxwell equations expressed in differential form are: $\mathrm{rot}\text{\hspace{0.17em}}E=-\text{\hspace{0.17em}}\frac{\partial \text{\hspace{0.17em}}B}{\partial \text{\hspace{0.17em}}t}$ $\text{div}\text{\hspace{0.17em}}\text{\hspace{0.17em}}D=\rho$ $\mathrm{rot}\text{\hspace{0.17em}}H=J+\text{\hspace{0.17em}}\frac{\partial \text{\hspace{0.17em}}D}{\partial \text{\hspace{0.17em}}t}$$\text{div}\text{\hspace{0.17em}}\text{\hspace{0.17em}}B=0$ where rot and div denote the rotation and the divergence respectively, E , D , H and B are the four vector quantities determining the electromagnetic field, J is the electric current density, ρ is the volumic electric charge and t is the time. NOTE 2 – The Maxwell equations completely define the electromagnetic field in a given medium only together with the relations characterizing the medium, often called constitutive relations; in the case of a linear medium, these relations are expressed in terms of the permittivity, permeability, and conductivity of the medium. Publication date: 1998-08 Source: 705-01-08 MOD Replaces: Internal notes: 2017-06-02: Cleanup - Remove Attached Image 121-11-62.gif CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: