2  Charge is conserved
We have already  hinted to the fact that when bodies are charged by
rubbing, there is transfer of electrons from one body to the other; no new
charges are either created or destroyed A picture of particles of electric
charge enables us to understand the idea of conservation of charge When
we rub two bodies, what one body gains in charge the other body loses Within an isolated system consisting of many charged bodies, due to
interactions among the bodies, charges may get redistributed but it is
found that the total charge of the isolated system is always conserved