For a metallic conductor with cross-sectional area $A$, the current $I$ is expressed as $I = Anve$ where $e$ denotes the elementary charge and $v$ is the average drift speed of the conduction electrons. What does the symbol $n$ stand for in this equation?
- Adensity of conduction electrons
- Bnumber of conduction electrons per unit time
- Cnumber of conduction electrons per unit volume
- Dvolume of conduction electrons