hi,

first of all you need to know what is charge, a charge or electric charge is known to as  the physical property of  any matter that causes it to experience a force when it placed in an electromagnetic field. there is two type of charge , positive or negative. when a charge distribution takes place, when there is less space among charges and the full body is equal charges all over it known as uniform charge distribution,

A system of a large number of closely spaced charges is known as continuous charge distribution. continuous charge distribution has 3 types,

linear charge distribution

volume charge distribution

surface charge distributions.