当电流开始从零上升到朝向其峰值，一个磁场被扼流线圈周围产生。

When the current begins to rise from zero toward its peak value, a magnetic field is created around the choke coil.

youdao

当电流开始从零上升到朝向其峰值，一个磁场被扼流线圈周围产生。

When the current begins to rise from zero toward its peak value, a magnetic field is created around the choke coil.

youdao