List of SI electromagnetism units

SI electromagnetism units

* v
* t
* e

Symbol[1] | Name of quantity  | Unit name  | Symbol  | Base units

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E | energy | joule | J = C⋅V = W⋅s  | kg⋅m2⋅s−2
Q | electric charge | coulomb | C  | A⋅s
I | electric current | ampere | A = C/s = W/V  | A
J | electric current density | ampere per square metre  | A/m2 | A⋅m−2
U, ΔV; Δϕ; E, ξ | potential difference; voltage; electromotive force | volt | V = J/C  | kg⋅m2⋅s−3⋅A−1
R; Z; X | electric resistance; impedance; reactance | ohm | Ω = V/A  | kg⋅m2⋅s−3⋅A−2
ρ | resistivity | ohm metre | Ω⋅m  | kg⋅m3⋅s−3⋅A−2
P | electric power | watt | W = V⋅A  | kg⋅m2⋅s−3
C | capacitance | farad | F = C/V  | kg−1⋅m−2⋅A2⋅s4
ΦE | electric flux | volt metre | V⋅m  | kg⋅m3⋅s−3⋅A−1
E | electric field strength  | volt per metre | V/m = N/C  | kg⋅m⋅A−1⋅s−3
D | electric displacement field | coulomb per square metre | C/m2 | A⋅s⋅m−2
ε | permittivity | farad per metre | F/m  | kg−1⋅m−3⋅A2⋅s4
χe | electric susceptibility | (dimensionless)  | 1  | 1
p | electric dipole moment | coulomb metre | C⋅m  | A⋅s⋅m
G; Y; B | conductance; admittance; susceptance | siemens | S = Ω−1 | kg−1⋅m−2⋅s3⋅A2
κ, γ, σ | conductivity | siemens per metre | S/m  | kg−1⋅m−3⋅s3⋅A2
B | magnetic flux density, magnetic induction | tesla | T = Wb/m2 = N⋅A−1⋅m−1 | kg⋅s−2⋅A−1
Φ, ΦM, ΦB | magnetic flux |  weber | Wb = V⋅s  | kg⋅m2⋅s−2⋅A−1
H | magnetic field strength  | ampere per metre | A/m  | A⋅m−1
F | magnetomotive force | ampere | A = Wb/H  | A
R | magnetic reluctance | inverse henry | H−1 = A/Wb  | kg−1⋅m−2⋅s2⋅A2
P | magnetic permeance | henry | H = Wb/A  | kg⋅m2⋅s–2⋅A–2
L, M | inductance | henry | H = Wb/A = V⋅s/A  | kg⋅m2⋅s−2⋅A−2
μ | permeability | henry per metre | H/m  | kg⋅m⋅s−2⋅A−2
χ | magnetic susceptibility | (dimensionless)  | 1  | 1
m | magnetic dipole moment | ampere square meter | A⋅m2 = J⋅T−1 | A⋅m2
σ | mass magnetization | ampere square meter per kilogram | A⋅m2/kg  | A⋅m2⋅kg−1

## See also

[edit]

* SI
* Speed of light
* List of electromagnetism equations

## References

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1. ^ International Union of Pure and Applied Chemistry (1993). Quantities, Units and Symbols in Physical Chemistry, 2nd edition, Oxford: Blackwell Science. ISBN 0-632-03583-8. pp. 14–15. Electronic version.

## External links

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Look up list of si electromagnetism units in Wiktionary, the free dictionary.

* History of the electrical units.

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