Four electric charges `+q, +q, -q` and `-q` are placed at the corners of a square of side 2L (see figure). The electric potential at point `A`, mid-way between the two charges `+q` and `+q`, is A. `(1)/(4pi epsilon_(0)) (2q)/(L) (1+(1)/(sqrt(5)))`B. `(1)/(4pi epsilon_(0)) (2q)/(L) (1-(1)/(sqrt(5))`C. zeroD. `(1)/(4pi epsilon_(0))(2q)/(L) (1+sqrt(5))`

Four electric charges `+q, +q, -q` and `-q` are placed at the corners

1.	Four electric charges `+q, +q, -q` and `-q` are placed at the corners of a square of side 2L (see figure). The electric potential at point `A`, mid-way between the two charges `+q` and `+q`, is A. `(1)/(4pi epsilon_(0)) (2q)/(L) (1+(1)/(sqrt(5)))`B. `(1)/(4pi epsilon_(0)) (2q)/(L) (1-(1)/(sqrt(5))`C. zeroD. `(1)/(4pi epsilon_(0))(2q)/(L) (1+sqrt(5))`
Answer» Correct Answer - B

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