In this table, basic physical quantities which are used in magnetic materials are included. The symbol and conversion from one unit to the other.

This conversion will be helpful in numerical problems.

 Quantity Symbol SI Unit CGS emu Unit Conversion Remarks Magnetic Induction or Magnetic field density B Tesla (Wb/m2) Gauss 1 Wb/m2=104 Gauss Magnetic field intensity H Amp-turn/m Oersted 1 Amp-turn/m=4π × 10-7H/m= 1 emu Magnetization M Amp-turn/m Maxwell/cm2 1 Amp-turn/m=10-3 Max/cm2 Permeabilty of a vacuum $\fn_jvn&space;\mu_{0}$ Henry/m emu 4π×10-7 H/m=1 emu Relative permeability $\fn_jvn&space;\mu_{r}$ unitless unitless $\fn_jvn&space;\mu_{r}$ (SI =CGS) Magnetic Susceptibility χ Unitless Unitless χ=4π (χ in CGS)