Problem 30706.
The area of the plates of a flat air capacitor is 0.01 m^2, the distance between them is 5 mm. A potential difference of 300V is applied to the plates. After disconnecting the capacitor from the voltage source, the space between the plates was filled with ebonite (e=3). Find the surface charge densities before and after filling?
Detailed solution with a brief record of the conditions, formulas and laws used in the solution, derivation of the calculation formula and answer.
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