1 |
π |
1 |
π |
Em | ||
|
50 | ||
|
2 |
E |
R+r |
25
| ||
9+1 |
2 |
E |
R+r |
25
| ||
9+1 |
2 |
1 |
π |
1 |
20π |
. |
E |
△∅ |
t |
. |
I |
△∅ |
R |
1 |
20π |
1 |
10 |
2 |
2 |
2 |
A.1.41A,200V | B.1.41A,141V | C.2A,200V | D.2A,141V |
A.5.00V | B.7.07V | C.10.00V | D.14.14V |
A.检流计指针将左右摆动 |
B.线圈平面转到与磁感线相垂直时,检流计的指针偏转最大 |
C.线圈平面转到与磁感线相平行时,检流计的指针偏转最小 |
D.线圈匀速转动时,检流计的指针指向一个方向的固定值 |
© 2017-2019 超级试练试题库,All Rights Reserved.