\(\rho = \frac{dQ}{dV}\), where \(Q\) is electric charge and \(V\) is Volume.
n3:latexSymbol
\(\rho\)
n3:plainTextDescription
In electromagnetism, charge density is a measure of electric charge per unit volume of space, in one, two or three dimensions. More specifically: the linear, surface, or volume charge density is the amount of electric charge per unit length, surface area, or volume, respectively.