What is the direction of the magnetic field at a point vertically 

(a) above 

(b) below segment 1 

in Figure 28.5?

Transcribed Image Text:

Figure 28.5 Mapping the magnetic field of a current loop. The magnetic field contributions from (a) segment 1 and (b) seg- ment 2 at A (c) add up to a vertical field. Magnetic fields are shown at (d) point C at the center of the ring, (e) point D below the ring, and (f) point G to the right of the ring. Note that in all cases the magnetic field of each segment is perpendicular to the line connecting that segment to the point at which we are determining the field. At point A, magnetic field from segment 1... ... plus that from segment 2... (a) field line of segment 1 A (b) + ... add up to a vertical field. (c) segment 2 segment 1 O Magnetic field from segments 1 and 2: (d) 2 at center of ring 100 B BB=B 1 (e) 2 at a point below ring 150 B 2 1 at a point outside ring S) B 2 B B