Can a body have a charge of `0.8 xx10^-19`C? justify your answer by comment.

Can be body have charge of 4 xx 10^(-19) C

10^(20) electrons, each having a charge of 1.6xx10^(-19) C , pass from a point A towards another point B in 0.1 s. What is the current in ampere ? What is its direction ?

Say true or false and justify your answer: 3^0=(1000)^0

Say true or false and justify your answer: 2^3xx3^2=6^5