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Charge density

The charge density is the amount of electric charge per unit length, surface area, or volume.

 


Explanation

Volume charge density (ρ) is the quantity of charge per unit volume, at any point in a volume. It is a vector quantity that plays a role in electromagnetic field theory and thus also in the Maxwell equations.

 


Example 1

The Maxwell equation of the electrical charge density is

where

    ∇⋅ Divergence
    D Electrical displacement

 


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