The surface charge density (σ\sigma) is defined as the amount of electric charge per unit area on a surface. The formula for surface charge density is:
σ=AQ
Where:
- σ\sigma is the surface charge density (measured in coulombs per square meter, C/m²),
- QQ is the total charge (measured in coulombs, C),
- AA is the area of the surface (measured in square meters, m²).
This formula applies to a uniformly distributed charge over a surface.