If the electric flux entering and leaving an enclosed surface respectively is and the electric charge inside the surface will be
As we learnt in
Gauss's Law -
Total flux linked with a closed surface called Gaussian surface.
No need to be a real physical surface.
Qenc - charge enclosed by closed surface.
According to Gauss theorem,
The flux enters the enclosure if one has a negative charge and flux goes out if one has a +ve charge
As one does not know whether