Question

Solve this question of electric field and flux​

Answer 1

Answer:

As we learnt in Gauss's law,the total flux linked with Gaussian surface,

is,

ϕ=ϕE.ds=ε0Qenc 

 Where Qenc=  total charge enclosed by a closed surface.

 electric flux through ABCD=zero

 for the change placed outside the box.

 but for charge inside the case.

it ε09 throught all the surface,

 so,

 for one surface,6ε09