Electromagnetic Quantities

Table 2-2: Electromagnetic Quantities.
Quantity	Symbol	SI Unit	Abbreviation
Angular frequency	ω	radian/second	rad/s
Attenuation constant	α	meter-1	m-1
Capacitance	C	farad	F
Charge	q	coulomb	C
Charge density (surface)	ρs	coulomb/meter2	C/m2
Charge density (volume)	ρ	coulomb/meter3	C/m3
Current	I	ampere	A
Current density (surface)	Js	ampere/meter	A/m
Current density (volume)	J	ampere/meter2	A/m2
Electric displacement	D	coulomb/meter2	C/m2
Electric field	E	volt/meter	V/m
Electric potential	V	volt	V
Electric susceptibility	χe	(dimensionless)	-
Electrical conductivity	σ	siemens/meter	S/m
Energy density	W	joule/meter3	J/m3
Force	F	newton	N
Frequency	ν	hertz	Hz
Imaginary unit	j, i	(dimensionless)	-
Impedance	Z, η	ohm	Ω
Inductance	L	henry	H
Magnetic current density (surface)	Jms	volt/meter	-
Magnetic field	H	ampere/meter	A/m
Magnetic flux	Φ	weber	Wb
Magnetic flux density	B	tesla	T
Magnetic potential (scalar)	Vm	ampere	A
Magnetic potential (vector)	A	weber/meter	Wb/m
Magnetic susceptibility	χm	(dimensionless)	-
Magnetization	M	ampere/meter	A/m
Permeability	μ	henry/meter	H/m
Permittivity	ε	farad/meter	F/m
Polarization	P	coulomb/meter2	C/m2
Poynting vector	S	watt/meter2	W/m2
Propagation constant	β	radian/meter	rad/m
Reactance	X	ohm	Ω
Relative permeability	μr	(dimensionless)	-
Relative permittivity	εr	(dimensionless)	-
Resistance	R	ohm	W
Resistive loss	Q	watt/meter3	W/m3
Torque	T	newton-meter	N·m
Velocity	v	meter/second	m/s
Wavelength	λ	meter	m
Wave number	k	radian/meter	rad/m