FIGURE 29-5
-The two identical bar magnets in Fig. 29-5 are dropped from rest along a vertical line passing through the center of the rings, as shown. The two rings are identical in every respect except that the ring on the right has a small break in it. Calling a_L and a_R the magnitude of the downward accelerations of the magnets on the left and right, respectively, you observe that

Question

FIGURE 29-5

-The two identical bar magnets in Fig. 29-5 are dropped from rest along a vertical line passing through the center of the rings, as shown. The two rings are identical in every respect except that the ring on the right has a small break in it. Calling a_L and a_R the magnitude of the downward accelerations of the magnets on the left and right, respectively, you observe that

Quizplus · Accepted Answer

The ring on the left will experience an induced current due to the changing magnetic field as the magnet falls, creating a magnetic field that opposes the motion of the magnet (Lenz's Law), thus reducing its acceleration. The ring on the right, being broken, cannot sustain an induced current, so the magnet falls with acceleration closer to free fall.

FIGURE 29-5 -The Two Identical Bar Magnets in Fig. 29-5 Are Dropped