Задача 31250.

The electrostatic field is created ball radius R = 8 cm, a uniformly charged with a bulk density of 10 nC / m ^ 3. To determine the potential difference between two points of the field lying at a distance R 1 = 10 cm, R 2 = 15 cm from the center of the ball.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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