i) A rectangular surface of 0.21 m x 0.38 m is oriented in a uniform electric field of 570 N/C. Determine the maximum possible electric flux via the surface?
ii) A surface completely surrounds a 2.0 x 10-6 C charge. Determine the electric flux via this surface if it is: (a) a sphere of radius 0.50 m; (b) a sphere of radius 0.22m and (c) a cube having edges 0.32 m long.