State and explain Kohlrausch’s law of independent migration of ions

The limiting molar conductivity of an electrolytes is equal to sum of the individual contribution of the anion and Cation of an electrolyte
${ }_{\mathrm{m}}{\mathrm{\lambda }}_{\left(\mathrm{AB}\right)}^0={\mathrm{\lambda }}_{{\mathrm{A}}^{+}}^0+{\mathrm{\lambda }}_{{\mathrm{B}}^{-}}^0$
Applications:
1) It is used in the calculation of the molar conductivity of weak electrolyte at infinite dilution.
2) It is used to find degree of dissociation of weak electrolyte
3) It is used to find the dissociation constant of weak electrolytes