He had an inherent interest in induced current and in the inductionfield.
他对感应电流和感应电场有着内在的兴趣。
2
Power is transferred to each device by direct contact rather than via a magnetic field and induction.
这样就能直接给设备供电，无需借助磁场和感应电流。
3
A static magnetic field is measured in units of ampere per metre, (A/m) but is usually expressed in terms of the corresponding magnetic induction measured in units of tesla, (T) or millitesla (mT).