KCET · Physics · Electrostatics

Which of the following is a correct statement?

A Gauss's law is true for any open surface
B Gauss's law is not applicable when charges are not symmetrically distributed over a closed surface.
C Gauss's law does not hold good for a charge situated outside the Gaussian surface.
D Gauss's law is true for any closed surface

Verified Solution

Answer & Solution

Correct Answer

(D) Gauss's law is true for any closed surface

Step-by-step Solution

Detailed explanation

Gauss law is valid only for closed surface and charge should be enclosed inside the closed surface to get flux through the closed surface.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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