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Illustration Electric Field Graph (inside / outside) - Hollow sphere

<span>Electric Field Graph (inside / outside) - Hollow sphere</span>
Electric Field Graph (inside / outside) - Hollow sphere

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Diagram of the electric field \(E(r)\) of a hollow sphere as a function of distance \(r\). The hollow sphere has the radius \(R\).

  • Outside (\(r \gt R\)) of the hollow sphere, the E-field is proportional to \(1/r^2\) as for a point charge.
  • Inside (\(r \lt R\)), however, the E-field is zero (Faraday cage).