配套习题- 电磁感应和发电机 -【青果学院】

1/5单选题

难度：

1.

闭合电路的部分导体或磁铁的运动方向如图所示，其中能产生感应电流的电路是（）

A	蹄形磁体向左运动
B	导体向上运动
C	导体向外运动
D	导体向下运动

正确答案：QQ==

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

2/5单选题

难度：

2.

如图所示，当导体ab水平向右运动时，电流表指针向左偏转. 下列情况中，电流表指针偏转方向正确的是（　　）

A	ab不动，磁体向右运动，指针向左偏转
B	磁体不动，ab向左运动，指针向左偏转
C	磁体不动，ab向上运动，指针向左偏转
D	对调磁体的磁极，ab向左运动，指针向左偏转

正确答案：RA==

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

3/5单选题

难度：

3.

关于电磁感应现象的下列说法，正确的是（）

A	导体在磁场中做切割磁感线的运动时，一定能产生感应电流
B	导体在磁场中运动时一定产生感应电流
C	在电磁感应现象中，电能转化为机械能
D	在电磁感应现象中，机械能转化为电能

正确答案：RA==

PHA+5b2T6Zet5ZCI5Zue6Lev5Lit55qE6YOo5YiG5a+85L2T5Zyo56OB5Zy65Lit5YGa5YiH5Ymy56OB5oSf57q/6L+Q5Yqo5pe25omN6IO95Lqn55Sf5oSf5bqU55S15rWB77yM5pWFQULplJnor6/kurrnsbvmoLnmja7nlLXno4HmhJ/lupTnjrDosaHliLbpgKDlh7rkuoblj5HnlLXmnLrvvIznlLXno4HmhJ/lupTnjrDosaHkuK3vvIzmnLrmorDog73ovazljJbkuLrnlLXog73vvIzmlYVD6ZSZ6K+vROato+ehru+8m+aVhemAiUQuPGJyPjwvcD4=

4/5单选题

难度：

4.

对于交流发电机，下列说法中正确的是( )

A	线圈转动一周,电流方向改变一次
B	线圈转动一周,电流方向改变三次
C	线圈转动一周,电流方向改变两次
D	线圈转动一周,电流方向改变四次

正确答案：Qw==

PHA+5Y+R55S15py655Sx5a6a5a2Q5ZKM6L2s5a2Q57uE5oiQ77yM5a6D5piv5qC55o2u57q/5ZyI5Zyo56OB5Zy65Lit5Y+X5Yqb6L2s5Yqo5Yi25oiQ55qE77yb57q/5ZyI6L2s5Yqo5LiA5ZGo5Li65LiA5Liq5ZGo5pyf77yb5Zyo5LiA5Liq5ZGo5pyf5YaF55S15rWB5pa55ZCR5pS55Y+Y5Lik5qyh77yb5pWF6YCJQy48L3A+

5/5单选题

难度：

5.

如图是电机示意图. 下列关于图示的说法，正确的是（）

A	图中绘出的是直流电动机的示意图，线圈正转到平衡位置
B	图中绘出的直流电动机的示意图，线圈受到磁场的作用力而转动
C	图中绘出的是交流发电机的示意图，此时导线切割磁感线，线圈中产生电流
D	图中绘出的是交流发电机的示意图，此时导线不切割磁感线，线圈中没有电流

正确答案：Qg==

PHA+5Zu+5Lit5pyJ55S15rqQ77yM5Zug5q2k5piv55S15Yqo5py655qE5Y6f55CG5Zu+77yM5Y+R55S15py655qE5Y6f55CG5Zu+5rKh5pyJ55S15rqQ77yM5pWFQ0TplJnvvJvlj6blpJbvvIzlubPooaHkvY3nva7mjIfnmoTmmK/nur/lnIjkuI7no4HlnLrmlrnlkJHlnoLnm7TnmoTkvY3nva7vvIzlm77npLrnmoTkvY3nva7kuI3mmK/lubPooaHkvY3nva7vvIzmlYVB6ZSZ44CBQuato+ehri4g5pWF6YCJQi48L3A+