is this answer correct? explain Two point particles, with the same charge, are l

Question

is this answer correct? explain

Two point particles, with the same charge, are located at two vertices of an equilateral triangle. A third charged particle is placed so the electric field at the third vertex is zero. The third 24. must: A. be on the perpendicular bisector of the line joining the first two charges B. be on the line joining the first two charges C. have the same charge as the first two particles D. have charge of the same magnitude as the first two charges but its charge may have a different sign E. be at the center of the triangle ans: A

Explanation / Answer

the most appropriate answer is option A.

due to two charges on the vertices of a equilateral triangle then the resultant of these two charges on the 3rd vertex is either upward or downward along the perpendicular bisector. hence to nullify this component definitely the 3rd charge should be on the perpendicular bisector only.

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