85. To one of the plates of the capacitor adjoins the flat porcelain plate (ε = 6,0) thickness d1 = 5,0 mm. The distance between the capacitor plates d = 8,0 mm, the potential difference between U = 100 V. Determine the intensity E1 and E2 of the electric field in the air and porcelain.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)