Find the potential at the origin produced by a line charge L kx (x 2 a 2 ) extending along the x axis from x a to , where a 0 Assume a zero reference at infinity

Question: Find the potential at the origin produced by a line charge L = kx/(x 2 + a 2 ) extending along the x axis

Find the potential at the origin produced by a line charge ρ_L = kx/(x² + a²) extending along the x axis from x = a to + ∞, where a > 0. Assume a zero reference at infinity.

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