Asked by Fekadu
Three point charges are located at the corners of an equilateral triangle(q1=2microC,q2=-4microC).Calculate the resultant electric force on 7microC charge.
Answers
Answered by
bobpursley
so you have two forces, 120 degrees apart when added head to tail. Sketch the diagram (one force is attractive, one repulsive, add them head to tail.
Use law of cosines.
Use law of cosines.
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