Consider the integral form of the Gaussian law in electrostatics: $\oint \vec{E} \cdot d\vec{s} = \frac{Q}{\epsilon_0}$. Which of the following statements are correct?

  • A
    It contains the law of Coulomb.
  • B
    It contains the superposition principle.
  • C
    An elementary patch on the enclosing surface is a polar vector.
  • D
    An elementary patch on the enclosing surface is a pseudo-vector.

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