charge density
  • The electric charge per unit area. Usually expressed in coulombs per square meter. Its symbol is σ. Also called surface charge density.
  • The electric charge per unit volume. Usually expressed in coulombs per cubic meter. Its symbol is ρ. Also called volume charge density.
  • The electric charge per unit length of a line or curve. Usually expressed in coulombs per meter. Its symbol is λ. Also called linear charge density.

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