The image below shows a loop of wire passing through a magnetic field at constant speed. Which of the following statements best describes the current in the wire as the wire passes through the field?
Moving loop
A. The current remains constant and in the same direction as the wire loop moves across the magnetic field.
B. The current steadily increases as the loop approaches the midpoint directly above the magnet, and then decreases steadily as the loop continues.
C. The current decreases to zero as the loop approaches the midpoint, and then changes direction and increases as the loop continues past the midpoint.
D. There is no current in the loop as the loop crosses the magnetic field at a steady speed.