Reference Terms and Units

Variable	Description	Unit variables	Units
$\overrightarrow{E}$	Electric Field Intensity	$V/m$ or $N/C$	Volts per Meter or Newtons per Coulomb
$\overrightarrow{D}$	Electric Flux Density	$C/m^2$	Coulombs per Meter squared
$\overrightarrow{H}$	Magnetic Flux Intensity	$A/m$	Amps per Meter
$\overrightarrow{B}$	Magnetic Flux Density or Magnetic Induction	$T$ or $W/m^2$ or $G$	Tessla or Watts per Meter squared or Gauss'

Relationships

$\overrightarrow{D}=\in \overrightarrow{E}$

• In free space:

• ${\in }_0=1/(36*\pi )*10^{-9}$ F/m

$\overrightarrow{B}=\mu \overrightarrow{H}$

• In free space:

• ${\mu }_0=4*\pi *10^{-7}$ H/m