50. Initially, the space between the plates of a plane capacitor filled with air and the field strength in the gap is equal to E0. Then, half the gap filled with uniform isotropic dielectric permittivity ε = 2. Find the moduli of the vectors E and D on both sides of the gap, if the introduction of charges on the dielectric plates remained unchanged.

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