88. Charges 1 nC placed at the vertices of an equilateral triangle with a side of 0.2 m. The resultant of the forces acting on the fourth charge placed in the middle of one side of the triangle is equal to 0.6 mN. To determine this charge, tension and potential of the field at the point of its location.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
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