Question

in the electrostatic field of two point charges q and -q kept certain distance apart, draw a closed surface through which electric flux is zero​

Answer 1

Answer:

Yes, electric flux is zero when an electric field is perpendicular but not at a surface. It is zero when it is perpendicular to the area vector as E.S=EScos(90)=0. The electric field intensity at a point on the line joining two point charges is zero.