A nonuniform linear charge distribution given by = bx, where b is a constant, is located

Question:

A nonuniform linear charge given by λ = bx, where b is a constant, is located along an x axis from x = 0 to x = 0.20 m. If b = 20 nC/m2 and V = 0 at infinity, what is the electric potential at
(a) The origin and
(b) The point y = 0.l5 m on the y axis?

Distribution
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