SI electromagnetism units

SI electromagnetism units
Symbol[1] Name of quantity Unit name Symbol Base units
Q electric charge coulomb C As
I electric current ampere A A (= W/V = C/s)
J electric current density ampere per square metre A/m2 A⋅m−2
U, ΔV, Δφ; E potential difference; electromotive force volt V J/C = kgm2s3A1
R; Z; X electric resistance; impedance; reactance ohm Ω V/A = kgm2s3A2
ρ resistivity ohm metre Ωm kgm3s3A2
P electric power watt W VA = kgm2s3
C capacitance farad F C/V = kg1m2A2s4
ΦE electric flux volt metre Vm kgm3s3A1
E electric field strength volt per metre V/m N/C = kgmA1s3
D electric displacement field coulomb per square metre C/m2 Asm2
ε permittivity farad per metre F/m kg1m3A2s4
χe electric susceptibility (dimensionless) 1 1
G; Y; B conductance; admittance; susceptance siemens S Ω1 = kg1m2s3A2
κ, γ, σ conductivity siemens per metre S/m kg1m3s3A2
B magnetic flux density, magnetic induction tesla T Wb/m2 = kgs2A1 = NA1m1
Φ, ΦM, ΦB magnetic flux weber Wb Vs = kgm2s2A1
H magnetic field strength ampere per metre A/m Am1
L, M inductance henry H Wb/A = Vs/A = kgm2s2A2
μ permeability henry per metre H/m kgms2A2
χ magnetic susceptibility (dimensionless) 1 1

See also

References

  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.


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