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Gauss’ Law

Gauss’ law states that the total electric displacement or electric flux through any closed surface surrounding charges is equal to the net positive charge enclosed by that surface.

Useful Steps when Applying Gauss’ Law

The following steps may be useful when applying Gauss’ law
  1. First, the symmetry associated with the charge distribution is identified.
  2. Then a Gaussian surface is identified and the direction of the electric field is determined.
  3. The field space associated with the charge distribution is divided into different regions. For each region, the net charge enclosed by the Gaussian surface, Qenc, is calculated.
  4. The electric flux ψ through the Gaussian surface for each region is calculated.
  5. The magnitude of the electric field (E) is deduced by equating ψ with Description: 30272.png

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