A rod of length L as shown in the figure lies along the x-axis with its left end at the origin. It has a non-uniform charge density λ = ax, where a is a positive constant. (a) What are the units of a? (b) Calculate the electric potential at A.   b). For the arrangement described in part a, calculate the electric potential at point B, which lies on the perpendicular bisector of the rod a distance b above the x axis.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.