일반물리학 2 — Electric Potential: Problem 14

14 A nonuniform linear charge distribution given by \(\lambda = bx\), where \(b\) is a constant, is located along an \(x\) axis from \(x = 0\) to \(x = 0.20 \text{ m}\). If \(b = 15 \text{ nC/m}^2\) and \(V = 0\) at infinity, what is the electric potential at (a) the origin and (b) the point \(y = 0.15 \text{ m}\) on the \(y\) axis?