Griffiths problems:
| 1) | 2.39 | [10 pts] |
| 2) | 3.2 | [10 pts] A charge placed in the center of the cube will be accelerated away from the center, if it is displaced an infinitesmally small amount in a certain direction. Find this direction. |
| 3) | 3.3 | [5 pts] |
| 4) | 3.7 | [10 pts] |
| 5) | 3.8 | [10 pts] |
| 6) | 3.9 | [10 pts] Ignore the last two questions in this problem. |