Three charge `-q,+q` and `-q` are placed at the cornors of an equilateral triangle of side `a` The resultant electric froce an a charge `+q` placed at a the centroid `O` of the triangle isA. `(3q^(2))/(4piepsilon_(0)a^(2))`B. `(q^(2))/(4piepsilon_(0)a^(2))`C. `(q^(2))/(2piepsilon_(0)a^(2))`D. `(3q^(2))/(2piepsilon_(0)a^(2))`

Three charge `-q,+q` and `-q` are placed at the cornors of an equilate

1.	Three charge `-q,+q` and `-q` are placed at the cornors of an equilateral triangle of side `a` The resultant electric froce an a charge `+q` placed at a the centroid `O` of the triangle isA. `(3q^(2))/(4piepsilon_(0)a^(2))`B. `(q^(2))/(4piepsilon_(0)a^(2))`C. `(q^(2))/(2piepsilon_(0)a^(2))`D. `(3q^(2))/(2piepsilon_(0)a^(2))`
Answer» Correct Answer - 4 `F=(1)/(4piepsilon_(0))(q_(1)q_(2))/(r^(2))`

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