# Electric field by straight wire

Suppose that an infinitely long straight current-carrying wire has a uniform linear charge density $$\lambda.$$ Let this wire be on the $$y$$-axis of the $$xy$$-plane, and let $$x > 0$$ be the distance between the $$y$$-axis and a point $$P$$ on the $$xy$$-plane. What is the strength of the electric field at the point $$P?$$

Note: $$\epsilon_0$$ in the choices below denotes the electric constant.

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