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The table below lists quantities that appear in the equations of natural law related to electromagnetic phenomena. For each, the table includes the typical formulaic symbol for the quantity, the conventional terminology used to refer to it, in some cases alternative terminology which Primel introduces, along with the coherent unit provided by SI, the coherent unit (quantitel) provided by Primel, and the conversion from the Primel unit to SI units.

Quantity Symbol

Conventional Terminology
Primel Terminology

SI Unit
Primel Unit
Primel conversion to SI

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bodyq

electric charge
quantity of electricity

coulomb = C
⚀electrel
≈ 58.3547142537770dμC

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body\mathbf{q}_\mathrm{m} = q\mathbf{v}

magnetic pole strength
magnetic charge
quantity of magnetism

C·m·s−1 = A·m
⚀magnetel = ⚀electrel × ⚀velocitel
≈ (1.65414607212326×10−5)d A·m

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bodyI

electric current

ampere = A
⚀currentel = ⚀electrel / ⚀timel = ⚀magnetel / ⚀lengthel
≈ 2.01673892461053d mA

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body\psi

magnetic scalar potential
magnetism gradient

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body\displaystyle\frac{\partial I}{\partial t}

alternation

A·s−1 = C·s−2
⚀alternationel = ⚀currentel / ⚀timel = ⚀electrel / ⚀timel2
≈ (6.96984972345401×10−2)dA·s−1

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body\mathbf{D}

electric displacement field
free electrization

C·m−2
⚀electrizationel = ⚀areanelic·electrel = ⚀electrel / ⚀areanel
≈ (8.67416326062990×10−1)d C·m−2

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body\mathbf{P}

polarization density
material electrization

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body\mathbf{H}

magnetizing field
free magnetization

(A·m)·m−2 = A·m−1
⚀magnetizationel = ⚀areanelic·magnetel = ⚀magnetel / ⚀areanel
≈ (2.45881301451119×10−1)d A·m−1

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body\mathbf{M}

bound magnetization
material magnetization

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body\rho

charge density
electrodensity

C·m−3
⚀electrodensitel = ⚀volumelic·electrel = ⚀electrel / ⚀volumel
≈ (1.05755609984820×102)d C·m−3

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body\nabla\cdot\mathbf{D}

electric displacement gradientdivergence
free electrodensity

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body\nabla\cdot\mathbf{P}

polarization density gradientdivergence
material electrodensity

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body\mathbf{J}

current density
magnetodensity

(A·m)·m−3 = A·m−2
⚀magnetodensitel = ⚀volumelic·magnetel = ⚀magnetel / ⚀volumel
≈ 2.99779082287369×101 A·m−2

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body\nabla\cdot\mathbf{H}

magnetizing field gradientdivergence
free magnetodensity

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body\nabla\cdot\mathbf{M}

bound magnetization gradientdivergence
material magnetodensity

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body\mathbf{E}

electric field
electric force

N·C−1 = V·m−1
⚀electrelic·forcel = ⚀forcel / ⚀electrel
≈ (9.26309397578308×101)dN·C−1

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body\mathbf{B}

magnetic flux density
magnetic force

tesla = T = N·(A·m)−1 = Wb·m−2 = kg·s−2·A−1
⚀magnetelic·forcel = ⚀forcel / ⚀magnetel
≈ (3.26782024376396×102)dT

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body\displaystyle\Phi_\mathrm{E}

electric flux
electric influence

N·m2·C−1 = V·m
⚀electrelic·influencel = ⚀influencel / ⚀electrel = ⚀forcel × ⚀areanel / ⚀electrel
≈ (6.23166968180227×10−3)d V·m

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body\Phi_\mathrm{B}

magnetic flux
magnetic influence

weber = Wb = N·m2·(A·m)−1 = J·A−1 = V·s
⚀magnetelic·influencel = ⚀influencel / ⚀magnetel = ⚀forcel × ⚀areanel / ⚀magnetel
≈ (2.19839897898932×10−2)d Wb

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bodyV

electric potential
electric potential

volt = V = J·C−1 = W·A−1= A·Ω
⚀electrelic·potentialel = ⚀εpotel = ⚀potentialel / ⚀electrel
≈ (7.59766687138707×10−1)d V

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body\mathbf{A}

magnetic vector potential
magnetic potential

J·(A·m)−1 = N·A−1 = V·s = Wb·m−1 = T·m
⚀magnetelic·potentialel = ⚀μpotel = ⚀potentialel / ⚀magnetel
≈ 2.68029339577057d Wb·m−1

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body\mu_0\psi

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body\nabla\cdot\mathbf{E}

electric field divergence
electric tension

N·m−1·C−1 = V·m−2
⚀electrelic·tensionel = ⚀tensionel / ⚀electrel = ⚀forcel / ⚀lengthel / ⚀electrel
≈ (1.12935867624483×104)d N·m−1·C−1

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body\nabla\times\mathbf{E}

electric field curl
electric tension

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body\nabla^2\mathbf{E}

electric field Laplacian
electric pressure

N·m−2·C−1 = Pa·C−1 = V·m−3
⚀electrelic·pressurel = ⚀pressurel / ⚀electrel = ⚀forcel / ⚀areanel / ⚀electrel
≈ 1.37691685191140×106 Pa·C−1

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body\nabla\cdot\mathbf{B}

magnetic field divergence
magnetic tension

T·m−1 = N·m−1·(A·m)−1 = Wb·m−3 = kg·m−1·s−2·A−1
⚀magnetelic·tensionel = ⚀tensionel / ⚀magnetel = ⚀forcel / ⚀lengthel / ⚀magnetel
≈ (3.98413440946584×104)dT·m−1

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body\nabla\times\mathbf{B}

magnetic field curl
magnetic tension

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body\nabla^2\mathbf{B}

magnetic field Laplacian
magnetic pressure

T·m−2 = N·m−2·(A·m)−1 = kg·m−2·s−2·A−1
⚀magnetelic·pressurel = ⚀pressurel / ⚀magnetel = ⚀forcel / ⚀areanel / ⚀magnetel
≈ (4.85746638695353×106)dT·m−2

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bodyS

elastance

F−1 = J·C−2
⚀elastancel
≈ 1.30197996315187×104 F−1

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bodyC

capacitance

farad = F = C2·J−1
⚀capacitancel
≈ 7.68060975054616×10−5 F

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bodyL

inductance

henry = H = J·A−2 = Wb·A−1
⚀inductancel
≈ (1.09007613834491×101)d H

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body\mathcal{R}

reluctance

H−1 = J−1·A2 = Wb−1·A
⚀reluctancel
≈ (9.17367113014993×10−2)d H−1

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body\overline{\varepsilon}

reciprocal permittivity
elastivity

m·F−1 = N·m2·C−2
⚀elastivitel = ⚀squarelectrelic·influencel
≈ (1.06789481561019×102)d m·F−1

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body\varepsilon

permittivity
capacitivity

F·m−1 = N−1·m−2·C2
⚀capacitivitel = ⚀influencelic·squarelectrel
≈ (9.36421813630215×10−3)d F·m−1

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body\mu

permeability
inductivity

H·m−1 = N·m2·(A·m)−2 = N·A−2
⚀inductivitel = ⚀squaremagnetelic·influencel
≈ (1.32902348591708×103)d H·m−1

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body\overline{\mu}

reciprocal permeability
reluctivity

m·H−1 = N−1·m−2·(A·m)2 = N−1·A2
⚀reluctivitel = ⚀influencelic·squaremagnetel
≈ (7.52432150820839×10−4)d m·H−1

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bodyR

resistance

ohm = Ω
⚀resistancel
≈ (3.76730313412×102)d Ω

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bodyX

reactance

ohm = Ω
⚀reactancel
≈ (3.76730313412×102)d Ω

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bodyZ

impedance

ohm = Ω
impedancel
≈ (3.76730313412×102)d Ω

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bodyG

conductance

siemens = S
⚀conductancel
≈ (2.65441872978875×10−3)d S

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bodyB

susceptance

siemens = S
⚀susceptancel
≈ (2.65441872978875×10−3)d S

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bodyY

admittance

siemens = S
⚀admittancel
≈ (2.65441872978875×10−3)d S

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body\rho

resistivity

Ω·m
⚀resistivitel = ⚀resistancel × ⚀lengthel
≈ 3.08997342479801d Ω·m

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body\kappa

conductivity

S·m−1
⚀conductivitel = ⚀rconductancel / ⚀lengthel
≈ (3.23627378790603×10−1)d S·m−1