Hello Aspirant,

The limitations of Coulomb's laws are as follows :-

>>>>> The law is applicable only for the point charges at rest.

>>>>> Coulomb’s Law can only be applied in those cases where the inverse square law is obeyed.

>>>>> It is difficult to implement Coulomb’s law where charges are in arbitrary shape .

>>>>> The law can’t be used directly to calculate the charge on the big planets.

I hope this information helps you.

Good Luck!!