The Gauss law for electric field is valid for:

  1. Any closed surface
  2. Only regular closed surface
  3. Any open surface
  4. None of these

Answer (Detailed Solution Below)

Option 1 : Any closed surface
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CONCEPT:

Gauss law:

  • According to this law, the total flux linked with a closed surface called Gaussian surface is 1/ϵo times the charge enclosed by the closed surface.

\(\Rightarrow \phi=\oint \vec{E}.\vec{dA}=\frac{Q}{\epsilon_o}\)

  • This law is applicable to all the closed surfaces.

EXPLANATION:

  • According to this law, the total flux linked with a closed surface called Gaussian surface is 1/ϵo times the charge enclosed by the closed surface.
  • So, this law is applicable to all the closed surfaces. Hence, option 1 is correct.
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