| Homework 7
Due Wednesday of Week 8 (May 21) by 3:30 pm |
| Textbook Problems
Chap. 21, Problems: 46, 78, 83 Chap. 22, Problems: 54, 56, 57, 59 |
| Brief Answers (full solutions are on open reserve in the library) |
| Chap. 21
46. 0.12 m 78. Conceptual: (a) The charge must not have a component that is perpendicular to the magnetic field, otherwise it would experience a force due to that field. Thus, the direction of B is along the +x or -x axis. (b) The charge experiences maximum magnetic force when it is perpendicular to B. Thus, the angle is 90 degrees. 78. Problem: (a) 0.12 T along the +x or -x axis 83. Conceptual: (a) out of page (b) into page (c) magnitude is the same at the two points 83. Problem: 2.8x10-6 T at both points Chap. 22
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