A line integral is a definite integral where you integrate some function along some path. For which of the following would it be appropriate to use a line integral?
A. The total work done on a charge moving in a circle of radius on the -plane centered at the -axis by a charge at the coordinate
B. The area under the curve between and
C. The total radiation absorbed by a person walking at a uniform rate around an ellipse with minor axis of length and major axis of length , with a radiation source at the coordinate