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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14/02/2022 4:53 pm
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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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14/02/2022 4:56 pm
Correct answer: (3) (d) only
Explanation:
Since φ = \(\vec{E}.\vec{A}\) = EA cosθ
θ = 90°
∴ φ = 0
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