单选题-单题 适中0.65 引用2 组卷420
如图所示的电路中,当滑动变阻器
的滑动触头P向下滑动时( )
![](https://img.xkw.com/dksih/QBM/2023/2/20/3178604411625472/3179063377305600/STEM/bdd6be47b57945049bdc7a123bc628a5.png?resizew=145)
![](https://img.xkw.com/dksih/QBM/2023/2/20/3178604411625472/3179063377305600/STEM/bdd6be47b57945049bdc7a123bc628a5.png?resizew=145)
A.电压表的读数减小 | B. |
C.电容器C的电容增大 | D.电容器C所带电量增多 |
22-23高二下·广东广州·开学考试
类题推荐
在图中所示的电路中,当滑动变阻器的滑动触片向b端(即向下)移动时( )
![](https://img.xkw.com/dksih/QBM/2017/12/14/1838253971767296/1839880667979776/STEM/d1b3979b-35f6-41f1-87e3-cae3343ac7df.png?resizew=221)
![](https://img.xkw.com/dksih/QBM/2017/12/14/1838253971767296/1839880667979776/STEM/d1b3979b-35f6-41f1-87e3-cae3343ac7df.png?resizew=221)
A.电容器C的电荷量在减小 |
B.电容器C的电荷量在增大 |
C.伏特表V的读数增大,安培表A的读数减小 |
D.伏特表V的读数减小,安培表A的读数增大 |
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