Four point charges +q, +q, -q and -q are placed on the corners of a square of side length ′a′ as shown in the figure. Magnitude of electric field at a point which is at a distance x(>>a) from the centre along a line perpendicular to the plane of square and passing through the center is

Four point charges +q, +q, -q and -q are placed on the corners of a sq

1.	Four point charges +q, +q, -q and -q are placed on the corners of a square of side length ′a′ as shown in the figure. Magnitude of electric field at a point which is at a distance x(>>a) from the centre along a line perpendicular to the plane of square and passing through the center is
Answer» Four point charges +q, +q, -q and -q are placed on the corners of a square of side length $^{'} a^{'}$ as shown in the figure. Magnitude of electric field at a point which is at a distance $x$ (>> $a$ ) from the centre along a line perpendicular to the plane of square and passing through the center is

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Four point charges +q, +q, -q and -q are placed on the corners of a square of side length ′a′ as shown in the figure. Magnitude of electric field at a point which is at a distance x(&gt;&gt;a) from the centre along a line perpendicular to the plane of square and passing through the center is

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Four point charges +q, +q, -q and -q are placed on the corners of a square of side length ′a′ as shown in the figure. Magnitude of electric field at a point which is at a distance x(>>a) from the centre along a line perpendicular to the plane of square and passing through the center is