# When an electron moves from A to B along an electric field 4

When an electron moves from A to B along an electric field line, the electric field does $3.94\times10^{-9}J$ of work on it. What are the electric potential differences (a) $V_{B}-V_{A}$ (b) $V_{C}-V_{A}$ and (c) $V_{C}-V_{B}$?