Задача 30056.

A thin long rod is uniformly charged with a linear density of 1.5 nC / cm. Along the axis of the rod, at a distance of d = 12 cm from its end, there is a point charge Q = 0.2 μC. Determine the force of interaction between a charged rod and a point charge.

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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