Four point charges `-Q, -q, 2q` and `2Q` are placed, one at each corner of the square. The relation between `Q` and `q` for which the potential at the centre of the square is zero isA. `Q =- q`B. `Q =- (1)/(q)`C. `Q = q`D. `Q = (1)/(q)`

Four point charges `-Q, -q, 2q` and `2Q` are placed, one at each corne

1.	Four point charges `-Q, -q, 2q` and `2Q` are placed, one at each corner of the square. The relation between `Q` and `q` for which the potential at the centre of the square is zero isA. `Q =- q`B. `Q =- (1)/(q)`C. `Q = q`D. `Q = (1)/(q)`
Answer» Correct Answer - A

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Four point charges `-Q, -q, 2q` and `2Q` are placed, one at each corner of the square. The relation between `Q` and `q` for which the potential at the centre of the square is zero isA. `Q =- q`B. `Q =- (1)/(q)`C. `Q = q`D. `Q = (1)/(q)`

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