3 |
3 |
q |
m |
1 |
2 |
|
3 |
2
| ||
3 |
v2 |
R |
q |
m |
3U |
2B2L2 |
L |
R |
1 |
3 |
4
| ||
9 |
q |
m |
3U |
2B2L2 |
|
| ||
BL |
ef+seg |
v |
4π |
9 |
2
| ||
3 |
BL2 |
U |
L |
v |
3 |
1 |
2 |
Eq |
m |
2
| ||
qL |
1 |
2 |
4
| ||
L |
q |
m |
3U |
2B2L2 |
4π |
9 |
2
| ||
3 |
BL2 |
U |
4
| ||
L |
A.运动时间越长的,其轨迹越长 |
B.运动时间越短的,射出磁场的速率越小 |
C.在磁场中偏转越小的,运动时间越短 |
D.所有质子在磁场里运动时间均相等 |
A.πm/s | B.
| C.2
| D.
|
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