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多选题
下列说法中正确的是( ).
A
核电站发电时将核能转化为电能
B
通电铜导线中的电流方向与该导线中自由电子定向移动的方向一致
C
交流发电机是电磁感应现象的应用,正常工作时将电能转化为机械能
D
将能自由转动的小磁针放在磁场中的P点,小磁针静止时,小磁针N极所指的方向就是P点磁场的方向
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解析:
A项,核电站利用核裂变将核能转化为电能;B项,金属导体中自由电子移动的方向与规定的电流的方向相反;C项,发电机工作时将机械能转化为电能;D项,磁场中任何一点的磁场方向,与静止在该点的小磁针N极指示的方向相同.
A项,核电站利用核裂变将核能转化为电能;B项,金属导体中自由电子移动的方向与规定的电流的方向相反;C项,发电机工作时将机械能转化为电能;D项,磁场中任何一点的磁场方向,与静止在该点的小磁针N极指示的方向相同.
更多 “多选题下列说法中正确的是( ).A核电站发电时将核能转化为电能B通电铜导线中的电流方向与该导线中自由电子定向移动的方向一致C交流发电机是电磁感应现象的应用,正常工作时将电能转化为机械能D将能自由转动的小磁针放在磁场中的P点,小磁针静止时,小磁针N极所指的方向就是P点磁场的方向” 相关考题
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