Solve the all parts of following question:
Question: A flat surface of area 3.00 m2 is rotated in a uniform electric field of magnitude E = 5.50 x 105 N/C.
Part A: Determine the electric flux through this area when the electric field is perpendicular to the surface?
Part B: Determine the electric flux through this area when the electric field is parallel to the surface?
I need help to find the electric flux through this area when the electric field is perpendicular to the surface.