The electric field in the region is E = a i + b j where 'a' and 'b' are constants. The net electric flux passing through a square area of side 'l' parallel to Y-Z plane is

Step-by-step solution

The electric field is given as E = a i + b j . The square area of side l is parallel to the Y-Z plane. The area vector is perpendicular to the Y-Z plane, which is along the X-axis. Therefore, the area vector is A = l^2 i . The electric flux passing through the area is given by the dot product of the electric field and the area vector: = E A = (a i + b j ) (l^2 i ) = al^2 Answer: al^2