Задача 31081.

In the field of an infinite uniformly charged plane with a surface charge density of 10 μC / m ^ 2, a charge moves from a point located at a distance of 0.1 m from the plane to a point at a distance of 0.5 m from it. Determine the charge if the work is done by external forces of 1 mJ.

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.
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