electric field at point on the axis passing through the centre and perpendicular to the plane of the square is
question is incomplete
A system of four equal charges is placed on a table forming a square.The configuration which satisfy the condition that electric field at point on the axis passing through the centre and perpendicular to the plane of the square is zero:
(A)+-+- (B)++-- (C)--++ (D)++++
electric field at point on the axis passing through the centre and perpendicular to the plane of the square is
question is incomplete
Yes.It was my mistake.Sorry.I have done correction in the question itself.Please read the question again.