Задача 31089.

The energy of a flat air condenser is 4 nJ, the potential difference across the plates is 60 V, the area of the plates is 10 cm ^ 2. Determine the distance between the plates, the intensity and volumetric energy density of the capacitor field.

Detailed solution with a short recording of the conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the solution, write. I try to help.