quantity, as of electric charge, per unit surface area.
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How to use surface density in a sentence
In the next place apply the surface characteristic equation to any point on a charged conductor at which the surface density is σ.
The surface-density is thus inversely as the cube of the distance PE.Lord Kelvin | Andrew Gray
The sharper the curvature is, the greater the surface density will be.The New Gresham Encyclopedia | Various