4m
| ||
3qL |
L |
v0 |
1 |
2 |
qE0L2 | ||
2m
|
qE |
m |
L |
v0 |
4 |
3 |
|
|
5 |
3 |
1 |
2 |
qE0 |
2m |
2 |
3 |
L-
| ||
v0 |
R | ||
|
5 |
9 |
mv |
qB1 |
mv |
qR |
3mv0 |
qL |
1 |
4 |
2πm |
qB2 |
πm |
2qB2 |
37 |
360 |
2πm |
qB1 |
37πm |
180qB1 |
πm |
2qB2 |
L |
v0 |
37πm |
180qB1 |
πm |
qB2 |
2L |
v0 |
37πL |
270v0 |
qE0L2 | ||
2m
|
3mv0 |
qL |
πm |
qB2 |
2L |
v0 |
37πL |
270v0 |
A.粒子在P点所受的电场力一定比磁场力大 | ||||||
B.粒子在P点的加速度为(qE-qυ0B)/m | ||||||
C.粒子在P点的速率为
| ||||||
D.粒子在P点的动能为
|
© 2017-2019 超级试练试题库,All Rights Reserved.