27. Two layers of a dielectric are placed between the plates of a flat capacitor parallel to the plates - paraffin (ε1 = 2) with a thickness of d1 = 0.5 mm and a mica plate (ε2 = 7) with a thickness of d2 = 1 mm. The electrostatic field strength E1 in paraffin is 700 kV / m. Define: 1) field strength E2 in mica; 2) the potential difference between the plates of the capacitor.

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