首页/ 题库 / [单选题]一导体棒ab 在均匀磁场中沿金属导轨向右的答案

一导体棒ab 在均匀磁场中沿金属导轨向右作匀加速运动,磁场方向垂直导轨所在平面。若导轨电阻忽略不计,并设铁芯磁导率为常数,则达到稳定后在电容器的M 极板上( )。

单选题
2021-09-01 23:34
A、带有一定量的正电荷
B、带有一定量的负电荷
C、带有越来越多的正电荷
D、带有越来越多的负电荷
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正确答案
B

试题解析

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一导体棒ab 在均匀磁场中沿金属导轨向右作匀加速运动,磁场方向垂直导轨所在平面。若导轨电阻忽略不计,并设铁芯磁导率为常数,则达到稳定后在电容器的M 极板上(   )。
一导体棒ab 在均匀磁场中沿金属导轨向右作匀加速运动,磁场方向垂直导轨所在平面。若导轨电阻忽略不计,并设铁芯磁导率为常数,则达到稳定后在电容器的M 极板上( )。
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