) A circular plastic disc of radius 15 cm is positioned perpendicular to an electric field of300 N C-!. i. What is the flux through the disc? ii. The disc is then rotated through 60° about an axis perpendicular to the field, as shown.What is the flux through the disc now? iii. Finally, the disc is rotated until it is parallel to the field. Calculate the flux in this configuration. (b) Two infinite parallel sheets have the same charge density o and are separated by a distance d.Using Gauss' law, determine the electric field i. in the region between the sheets, ii. in the regions outside the sheets.