Figure a show a rectangular conducting loop of resistance R = 0.020??, height H = 1.5 cm, and length D = 2.5 cm being pulled at constant speed v = 40 cm/s through two regions of uniform magnetic field. Figure b gives the current i induced in the loop as a function of the position x of the right side of the loop. The vertical axis scale is set by i s = 3.0μA. For example, a current equal to i s is induced clockwise as the loop enters region 1. What are the

(a) Magnitude and

(b) Direction (into or out of the page) of the magnetic field in region 1? What are the

(c) Magnitude and

(d) Direction of the magnetic field in region 2?

(a) (b) (vt) !