Question

Mark the correct options

• A. Gauss’s law is valid only for assymmetrical charge distributions.
• B. Gauss’s law is valid only for charge placed in vacuum.
• C. The electric field can not be calculated by Gauss’s law is the field due to the charges inside the Gaussian surface.
• D. The flux of the electric field through a closed surface due to all the charges is equal to the flux due to the charges enclosed by the surface.

Answer 1

Answer: (A), (C), (D)

Gauss's law is valid only on symmetrical structure of object (like as spherical, cylindrical ,plane symmetry) not on charge distributions.
It is valid in charges of any medium.
The electric field is the resultant effect due to all charges.
But the electric flux is only depend on the charge enclosed by the closed surface i.e $\varphi =\frac{Q_m}{{ϵ}_0}$.
So the flux of the electric field through a closed surface due to all the charges is equal to the flux due to the charges enclosed by the surface.