Задача 30166.

Four point charges are fixed at the vertices of a square with a side of 10 cm. Find the forces F acting on each of these charges from the other three, provided that: a) Q1 = Q2 = Q3 = Q4 = 40 nC; b) Q1 = Q2 = 40 nC, and Q2 = Q4 = -40 nC.

Detailed solution with a brief record of the conditions, formulas and laws used in the solution, derivation of the calculation formula and answer.
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