Write the law of conservation of charge. Give one example.

The total charge of the isolated system is always conserved.

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.

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 remains conserved.

It is not possible to create or destroy net charge carried by any isolated system although the charge carrying particles may be created or destroyed in a process.

When a neutron turns into a proton and an electron. The proton and electron thus created have equal and opposite charges and the total charge is zero before and after the creation.

$\therefore 0^{1} \rightarrow{ }_{1} p^{1}+-{ }_{1} e^{0}$

$\therefore 0=+e+(-e)$

Conservation of charge is a global process.