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下列说法错误的是()
A.奥斯特发现了“电能生磁”Oster discovered "electricity generates magnetism"#B.电动机的工作原理是通电线圈在磁场中受力转动The working principle of the motor is that the current-carrying coil is forced to rotate in the magnetic field#C.电动机工作时将电能转化为机械能the motor can convert electric energy into mechanical energy#D.电动机和发电机的实质是一样的The essence of electric motor and generator is the same参考答案和解析
奥斯特实验表明磁场对通电导体有力的作用
更多 “下列说法错误的是()A.奥斯特发现了“电能生磁”Oster discovered "electricity generates magnetism"#B.电动机的工作原理是通电线圈在磁场中受力转动The working principle of the motor is that the current-carrying coil is forced to rotate in the magnetic field#C.电动机工作时将电能转化为机械能the motor can convert electric energy into mechanical energy#D.电动机和发电机的实质是一样的The essence of electric motor and generator is the same” 相关考题
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单选题下列关于出口货物退免税说法错误的是 ( )
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