26. A potential difference U1 = 1.5 kV is applied to the plates of a flat air condenser. The area of the plates is S = 150 cm2, the distance between them is d = 5 mm. With the voltage source turned on, glass was introduced between the plates (ε = 7). Determine the potential difference U2 between the plates after making the dielectric. Also determine the capacitance of capacitor C1 and C2 before and after making the dielectric.

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