电动机是利用通电线圈在磁场中会产生 的原理,将电能转换为机械能。
第1题:
关于直流电动机和发电机的几种说法中,不正确的是() Among several statements about DC motor and generator, the incorrect one is ()
A.电动机是把机械能转化为电能的装置A motor is a device that converts mechanical energy into electrical energy
B.电动机是利用通电线圈在磁场中转动的原理工作的The motor works on the principle that the current-carrying coil rotates in the magnetic field
C.发电机是把机械能转化为电能的装置A generator is a device that converts mechanical energy into electrical energy
D.发电机是利用电磁感应原理工作的 The generator works on the principle of electromagnetic induction
第2题:
继电器的电磁机构中,吸引线圈的作用是:()
A.将电能转化成磁场能量
B.将磁场能转化成电能
C.将电能转化成机械能
D.将机械能转化成电能
第3题:
下列说法正确的是
A.通电导体在磁场中一定能受到力的作用
B.通电导体在磁场中受力而运动时,电能转化为机械能
C.通电导体在磁场中受力而运动时,机械能转化为电能
D.当通电线圈所在平面与磁感线平行时,线圈处于平衡位置
第4题:
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第5题:
小电动机实验是根据通电线圈在磁场中受力转动的原理。