Four equal positive charges are fixed at the vertices of a square of side L. Z-axis is perpendicular to the plane of the square. Thepoint z = 0 is the point where the diagonlas of the square intrsect each other. The plot of electric field due to the four charges, as one moves on the z-axis.

Four equal positive charges are fixed at the vertices of a square of s

1.	Four equal positive charges are fixed at the vertices of a square of side L. Z-axis is perpendicular to the plane of the square. Thepoint z = 0 is the point where the diagonlas of the square intrsect each other. The plot of electric field due to the four charges, as one moves on the z-axis.
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Four equal positive charges are fixed at the vertices of a square of side L. Z-axis is perpendicular to the plane of the square. Thepoint z = 0 is the point where the diagonlas of the square intrsect each other. The plot of electric field due to the four charges, as one moves on the z-axis.

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