A respiration monitor has a flexible loop of copper wire, which wraps about the chest. As the wearer breathes, the radius of the loop of wire increases and decreases. When a person in the Earth's magnetic field (assume 58.9 T) inhales, what is the average current in the loop, assuming that it has a resistance of 30.7 and increases in radius from 19.3 cm to 25.3 cm over 1.13 s? (Assume that the magnetic field is perpendicular to the plane of the loop.)