Six charges are placed at the vertices of a regular hexagon as shown in the figure. The electric...

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Six charges are placed at the vertices of a regular hexagon as shown in the figure. The electric field on the line passing through point \( O \) and perpendicular to the plane of the figure as a function of distance \( x \) from point \( O \) is (assume \( xa \) )
(A) 0
(B) \( \frac{Q a}{\pi E_{0} x^{3}} \)
(C) \( \frac{2 Q a}{\pi \varepsilon_{0} x^{3}} \)
(D) \( \frac{\sqrt{3} Q a}{\pi \varepsilon_{0} x^{3}} \)
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