Question

Can a body have charge of 2.8×10^(-18) coulamb

Answer 1

No.

The min charge a body can have is equal to the charge of an electron , i.e, 1.6 ×10^-19.

For this,we need to know about quantisation of charge.

**The quantization of electric charge is the property due to which all free charges are integral multiple of basic unit of charge of an electron (or proton) represented by e. The basic cause of quantization is that only integral no. of electrons can be transferred form one body to another on rubbing.

So , it after 1.6×10^-19, the next charge will be 2×1.6×10^-19 and so on.