A (20-mathrm{cm})-long rod, with uniform linear charge density (100 mathrm{nC} / mathrm{cm}), is set up symmetrically on

Question:

A $20-\mathrm{cm}$-long rod, with uniform linear charge density $100 \mathrm{nC} / \mathrm{cm}$, is set up symmetrically on the $x$ axis. What are the magnitude and direction of the electric field at a point located at a distance of $5 \mathrm{~cm}$ on the perpendicular bisector of the rod in the $x y$-plane?

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