Griffiths problems:
1) | 2.26 | [10 pts] |
2) | 2.31b | [5 pts] |
3) | 2.32 | [5 pts] |
4) | 2.33 | [10 pts] |
5) | 2.36 | [10 pts] |
6) | 2.40 | [10 pts] |
7) | 2.49 | [10 pts] |
Problem 2.49 is quite difficult, but it explains the very interesting physics of vacuum tubes. It is a real problem of electrostatics in action!
Hints: For part (b), use energy conservation to get the answer. For part (e), guess a solution of the form V(x)=Cxa, and substitute in to determine the exponent "a".