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The electric lines of force entering into a Gaussian surface provide negative flux. (b) A charge 'q' is placed at the centre of a cube. The flux through all the faces will be the same.

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Choose the incorrect statement :

(a) The electric lines of force entering into a Gaussian surface provide negative flux.

(b) A charge 'q' is placed at the centre of a cube. The flux through all the faces will be the same.

(c) In a uniform electric field net flux through a closed Gaussian surface containing no net charge, is zero.

(d) When electric field is parallel to a Gaussian surface, it provides a finite non-zero flux.

Choose the most appropriate answer from the options given below

(1) (c) and (d) only

(2) (b) and (d) only

(3) (d) only

(4) (a) and (c) only

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Correct answer: (3) (d) only

Explanation:

Since φ = \(\vec{E}.\vec{A}\) = EA cosθ

θ = 90°

∴ φ = 0

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