5. Calculate the electrostatic energy of a dielectric ball (E = 3) charged by volume with a density of p = 3 50 nC / m ^ 3. The radius of the ball is R = 10 cm.
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5. Calculate the electrostatic energy of a dielectric ball (E = 3) charged by volume with a density of p = 3 50 nC / m ^ 3. The radius of the ball is R = 10 cm.
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