416 a line of charge with uniform density pi extends between z l2 9933
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4.16 A line of charge with uniform density pi extends between z = -L/2 and z = L/2 along the z axis. Apply Coulomb's law to obtain an expression for
the electric field at any point P(r,0,0) on the x-y plane. Show that your result reduces to the expression given by Eq. (4.33) as the length L is extended to infinity.