Two Very Large Parallel Metal Plates, Separated by 0

Multiple Choice

Two very large parallel metal plates, separated by 0.20 m, are connected across a 12-V source of potential. An electron is released from rest at a location 0.10 m from the negative plate. When the electron arrives at a distance 0.050 m from the positive plate, how much kinetic energy has the electron gained? (e = 1.60 × 10^-19 C)

A) 2.4 × 10^-19 J
B) 4.8 × 10^-19 J
C) 7.2 × 10^-19 J
D) 9.6 × 10^-19 J