Dipole Meter is a versatile instrument for measuring the dielectric constant of non-polar as well as polar liquids. This instrument is designed and fabricated for laboratory experiments.

Dielectric Constant of unknown liquid is calculated using relation:

              
where Capacitance of Air, Capacitance of  standard liquid, Capacitance of  test liquid and dielectric constant of standard liquid

Solution of polar molecule having molecular wt. with non-polar solvent having molecular wt. in different concentrations, is considered. Molar Polarization of the mixture is obtained by relation

               

where k is dielectric constant of the solution having molefraction  of polar molecule and mole fraction  of  non polar solvent and  is the density of the mixture.

A graph between  and  is obtained  

           

The dipole moment  is calculated using relation

           
Where T is absolute temperature, is molar polarization of  non-polar liquid and is molar polarization of non polar liquid.