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Electrostatics: Gauss's Law MCQ

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Gauss's LawMediumQuestion 31426

Question

Gauss's law is most useful for calculating E when:
  1. A
    Charge is at a point
  2. B
    Distribution has spherical, cylindrical, or planar symmetry
    Correct
  3. C
    Distribution has no pattern
  4. D
    There are many charges

Correct answer

Distribution has spherical, cylindrical, or planar symmetry

Explanation

With high symmetry, E is constant over a Gaussian surface, allowing it to be factored out of the integral.

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