Задача 31084.

A 1 nC charge is attracted to an infinite plane uniformly charged with a surface density of 0.2 μC / m ^ 2. At what distance from the plane was the charge located if the work of the field forces on its movement is equal to 1 μJ?

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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