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 squar is zero is:

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Q. Four point charges

- Q, - q, 2 q

and

2 Q

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 is

Q. Four point charge -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 is:

Q. Four point charges

- Q, - q, 2 q

and

2 Q

are placed, at different corners of a square. The relation between

- Q

and

q

for which the potential at the center of the square is zero is:-

Q. Four charges

2 q, q, - q

and

- q

are placed at corners of a square of side length

a .

The electrostatic potential at the centre of the square will be equal to

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Four charges q, 2q, 3q and 4q are placed at corners A, B, C and D of a square as shown in the figure below. Find the direction of electric field at the centre P of the square.

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