What are linear,surface and volume distribution of charge?

(N/A) Charge distribution is the way electric charge is spread over a region. It is classified into three types:
$1$. Linear Charge Distribution: When charge is distributed uniformly along a line (like a thin wire or ring),it is called linear charge distribution. The linear charge density $\lambda$ is defined as $\lambda = \frac{dq}{dl}$,where $dq$ is the charge on an element of length $dl$. Its $SI$ unit is $C/m$.
$2$. Surface Charge Distribution: When charge is distributed uniformly over a surface (like a thin sheet or shell),it is called surface charge distribution. The surface charge density $\sigma$ is defined as $\sigma = \frac{dq}{dA}$,where $dq$ is the charge on an area element $dA$. Its $SI$ unit is $C/m^2$.
$3$. Volume Charge Distribution: When charge is distributed uniformly throughout the volume of an object,it is called volume charge distribution. The volume charge density $\rho$ is defined as $\rho = \frac{dq}{dV}$,where $dq$ is the charge in a volume element $dV$. Its $SI$ unit is $C/m^3$.