| Differences between revisions 1 and 2 | Back to page |
|
⇤ ← Revision 1 as of 10:16PM, Oct 03, 2011
Size: 535
Comment:
|
Size: 579
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = The motion under a constant $\vec{B}$ = | = The motion of a charged particle under a constant $\vec{B}$ = |
| Line 6: | Line 6: |
| = The motion under a constant $\vec{B}$ = | = The motion of a charged particle under a constant $\vec{B}$ = |
The motion of a charged particle under a constant $\vec{B}$
- is time-reversal invariant
- is not time-reversal invariant
The motion of a charged particle under a constant $\vec{B}$
- conserves the mechanical energy
- does not conserve the mechanical energy
The work energy “theorem”
The work energy theorem, $\Delta T = W$ where $T$ is the kinetic energy (and $\Delta T = T_2 - T_1$ is its change) and $W$ is the net work done on the particle, is
- always valid (in classical mechanics).
- valid only for conservative forces.