A.2A,20V | B.1.41A,20V |
C.1.41A,14.1V | D.2A,14.1V |
20 | ||
|
U |
R |
14.1 |
10 |
A.400V,0.08s | B.400V,0.02s | C.200V,0.02s | D.200V,0.08s |
A.线框转动的周期为0.02s |
B.图示位置线框正确过中性面 |
C.线框产生的交流电动势有效值为311V |
D.利用题干所给信息可以求出线框边长 |
A.图示位置电流表的示数为0 | ||||
B.R两端电压的有效值U=
| ||||
C.一个周期内通过R的电荷量q=
| ||||
D.交流电流表的示数I=
|
A.1A | B.
| C.
| D.2A |
© 2017-2019 超级试练试题库,All Rights Reserved.