Two charges of equal magnitude q are placed in air at a distance 2a apart and third charge `-2q` is placed at mid-point . The po

Two charges of equal magnitude q are placed in air at a distance 2a apart and third charge `-2q` is placed at mid-point . The potential energy of the system is `(epsi_(0)` = permittivity of free space)
A. `- q^(2)/(8 pi epsi_(0)a)`
B. `-(3q^(2))/(8pi epsi_(0)a)`
C. `-(5q^(2))/(8pi epsi_(0)a)`
D. `-(7q^(2))/(8pi epsi_(0)a)`

Two charges of equal magnitude q are placed in air at a distance 2a apart and third charge `-2q` is placed at mid-point . The potential energy of the

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