Задача 30093.

In the space between the plates of the parallel plate capacitor connected to the battery terminals with the voltage 360 V is ebonite (ε = 2,7), the distance between the capacitor plates of 5.4 cm. Then ebonite plate removed. How do we change the distance between the capacitor plates, the energy of the capacitor is unchanged? Consider two cases: 1) if you leave the plate attached to the battery; b) if the plate disconnected from the battery.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
If you have any questions to address, please. I´ll try to help.