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A thin rod extends along the z-axis form z = -d to z = d. The...

A thin rod extends along the z-axis form z = -d to z = d. The rod carries a charge Q uniformly distributed along its length 2d with linear charge density λ = Q/2d. a) Find the electric potential at a point z > d along the z-axis. Indicate clearly where you have chosen your zero reference point for your potential. b) Use the relationship E = - ∇ V to find the electric field at a point z > d along the z-axis. c) Sketch a plot of both electric potential and electric field as a function of z.

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