|
QUIZ 9 |
| 18,, 22, 26, 34, 38, |
| 18. 5.1x10 -6 N toward the wire. |
| 22. 1 stands for the wire on the left and 2 the wire on right. Vector-B1 = 2.7500x10-5 T, 78 degrees with e vertical. Vector-B2 = 2.5385x10-5 T, 64 degrees with e vertical. Net vector = 5.00x10-5 T, 5.83 degrees below the negative x-axis.. |
| 26. 17000 turns |
| 34. magnetic field vector = (u0*I*theta/[4*pi])*(R2 - R1/R1*R2), out of the page. |
| 38. See class discussion; important here is the field points out, almost like that of a long wire. The field due to the moving charge has some similarities with that due to the long wire. You can take the direction of the wire as the direction of the velocity. The magnetic field due to the moving charge form loops that are centered on the direction of motion, but they vary in radius with distance from charge q. |