Answer to Question #59029 in Electricity and Magnetism for Emmanuel

Question

The electric potential difference between two points A and B is 42 V. What is the work done by an external agent in carrying a charge of
5.0×10−5C
from A to B at constant speed?
2.1×10−3J
8.4×10−4J
21×10−4J
8.4×10−3J