SP 212 Worksheet
Lesson 9: Ch. 24.4-24.5, Electric potential from a charge distribution
1) From last time: A 9.0 nC charge sits at the origin of an x-y coordinate system. Find the electric potential
difference ∆V = Vf − Vi between the initial point (0, 3.0) m and the final point (−1.0, −2.0) m.
2) Find an expression for the electric potential at point P . Assume the rod has a uniform linear charge
density λ, and d = D = L/4. (Write your expression in terms of λ and k.)