Choose the incorrect statement: (a) The electric lines of force entering into a Gaussian surface provide…
Choose the incorrect statement: (a) The electric lines of force entering into a Gaussian surface provide negative flux. (b) A charge 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 an 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:
(b) and (d) Only
(c) and (d) Only
(a) and (c) Only
(d) Only
Solution
We know that electric flux is a scalar quantity and this is the scalar product of the magnitude of electric field and surface area.
Recall, the formula given by Gauss theorem, , here , it means, .