The fact that electric charges are integral multiples of the fundamental electronic charge was proved experimentally by

When a glass rod is rubbed with a silk cloth,charges appear on both. $A$ similar phenomenon is observed with many other pairs of bodies. Explain how this observation is consistent with the law of conservation of charge.

$A$ body can be negatively charged by

Two objects are rubbed against each other. The nature of the electric force between them when they are placed at some distance is:

How can a neutral body be charged electrically?

How many electrons are there in $1 \ C$ of charge?