Specific gravity relates this quantity between two substances.
The polarization type of this quantity is proportional to the average electric dipole moment. The electric field times the electrical conductivity yields the "current" form of this quantity, which is also given as current over cross-sectional area. One type of this quantity is a useful tool for comparing the efficiencies of fuels; that energy variety of this quantity is equal to useful energy divided by volume. Specific gravity relates this quantity between two substances. Name this quantity, which, in its simplest form, is stated as mass over volume.
The polarization type of this quantity is proportional to the average electric dipole moment.
{density}