A metallic frame moving along the positive direction enters a region of space wi
ID: 2192789 • Letter: A
Question
A metallic frame moving along the positive direction enters a region of space with a uniform magnetic field pointing in the positive z direction as shown in Fig. 29-8. In what direction should a force be applied to the frame to keep it moving at a constant speed while it is entering the field?
Explanation / Answer
in left side