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
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
参考解析
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．
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