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Charge density is the amount of electric charge per length, area, or volume.
| Quantity | Definition | Symbol | SI Units |
|---|---|---|---|
| Linear charge density | Charge per unit length | λ | C/m (coulombs per metre) |
| Area charge density | Charge per unit area | η OR σ | C/m² (coulombs per square metre) |
| Volumetric charge density | Charge per unit volume | ρ | C/m³ (coulombs per cubic metre) |
See also
- Density
- Continuity equation relating charge density and current density
"Charge density"