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Illustration Electric Field Inside and Outside (Graph) - Solid Cylinder

Electric Field Inside and Outside (Graph) - Solid Cylinder
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Graph of the electric field \( E \) of a homogeneously charged solid cylinder as a function of the perpendicular distance \( r \) to the longitudinal axis of the cylinder.

The solid cylinder has the radius \( R \):

  • Outside (\(r \gt R\)) of the solid cylinder the E-field drops with \(1/r\).
  • Inside (\(r \lt R\)) of the solid cylinder the E-field increases linearly.