If there were only one type of charge of the universe then

Options

A. `oint_(s)vec(E).vec(ds)!=0` on any surface
B. `oint_(s)vec(E).vec(ds)=0` if the charge is outside the surface
C. `oint_(s)vec(E).vec(ds)` could not be defined
D. `oint_(s)vec(E).vec(ds)=(q)/(epsilon_(0))` if charge of magnitude `q` were inside the surface

Answer

B,D

Explanation

`ointE.dvec(S)=(q)/(epsilon_(0))` where `q_(0)` is the charged present inside the surface .This is correct following .Gauss'law .if no charge is outside the surface or charge is outside the surface `ointvec(E).dvec(S)=0` Options (b) and (d) are correct.