单选题-单题 较易0.85 引用10 组卷1056
如图所示,蹄形磁铁和矩形线圈均可绕竖直轴OO‘转动,当从上往下看磁铁做逆时针转动后,则【 】
![](https://img.xkw.com/dksih/QBM/2018/3/20/1906034965741568/1908215279271936/STEM/5dda1ebb-dd8e-4da1-ba0e-a57aa9cc4422.png?resizew=111)
![](https://img.xkw.com/dksih/QBM/2018/3/20/1906034965741568/1908215279271936/STEM/5dda1ebb-dd8e-4da1-ba0e-a57aa9cc4422.png?resizew=111)
A.线圈将逆时方向转动,转速与磁铁相同 |
B.线圈将逆时方向转动,转速比磁铁小 |
C.线圈将逆时方向转动,转速比磁铁大 |
D.线圈仍将静止 |
17-18高二·山西忻州·课时练习
类题推荐
如图所示,蹄形磁铁和矩形线圈均可绕竖直轴OO′转动。从上往下看磁铁作逆时针转动时,则( )
![](https://img.xkw.com/dksih/QBM/2020/4/18/2444092375064576/2444339192922112/STEM/8458bf82-5d8e-4dc4-b798-f2dd69052c2e.png?resizew=90)
![](https://img.xkw.com/dksih/QBM/2020/4/18/2444092375064576/2444339192922112/STEM/8458bf82-5d8e-4dc4-b798-f2dd69052c2e.png?resizew=90)
A.线圈将作逆时针转动,转速与磁铁相同 |
B.线圈将作逆时针转动,转速比磁铁小 |
C.线圈中产生恒定电流 |
D.线圈中感应电流方向始终是 abcda |
如图所示,蹄形磁铁和矩形线圈均可绕竖直轴OO′转动。从上向下看,当磁铁逆时针转动时,则( )
![](https://img.xkw.com/dksih/QBM/2020/12/18/2616823988649984/2656332307374080/STEM/220d86c8-02bf-46b8-b2a9-ba8c989fbb5d.png?resizew=102)
![](https://img.xkw.com/dksih/QBM/2020/12/18/2616823988649984/2656332307374080/STEM/220d86c8-02bf-46b8-b2a9-ba8c989fbb5d.png?resizew=102)
A.线圈将逆时针转动,转速与磁铁相同 |
B.线圈将逆时针转动,转速比磁铁大 |
C.线圈转动时将产生感应电流 |
D.线圈转动时感应电流的方向始终是abcda |
如图所示,蹄形磁铁和矩形线圈均可绕竖直轴OO′转动.从上向下看,当磁铁逆时针转动时,则( )
![](https://img.xkw.com/dksih/QBM/2016/11/29/1826279674298368/1826279674413056/STEM/005ca0196ca34f4c86843fd69f2dd8ca.png)
![](https://img.xkw.com/dksih/QBM/2016/11/29/1826279674298368/1826279674413056/STEM/005ca0196ca34f4c86843fd69f2dd8ca.png)
A.线圈将逆时针转动,转速与磁铁相同 |
B.线圈将逆时针转动,转速比磁铁小 |
C.线圈转动时将产生大小、方向周期性变化的电流 |
D.线圈转动时感应电流的方向始终是abcd |
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