Решение задачи по физике раздел 70 пункт 28 электро

28. A flat air capacitor, charged and then disconnected from the voltage source U1 = 400 V, was connected in parallel with an uncharged capacitor of the same size and shape, with a dielectric between the plates. Determine the dielectric constant ε of this dielectric if, after connecting the capacitors, the potential difference decreased to U = 100 V.

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