Industry new

What is the cause of the inductor whistling? _Inductor coil_Electromagnetic coil

What is the cause of the inductor whistling?
Inductors usually emit sound when they are working at high currents. The specific reason is that when the AC current passes through the inductor, it will cause the inductor to generate an alternating induced magnetic field. When the current direction is reversed, a magnetic field opposite to the previous direction will be generated. Therefore, due to the difference in the direction and strength of the magnetic field, various parts inside the inductor will have a messy force inside.
When the current is large, the force will also become large, eventually causing friction and collision between the inductor turns, and making a sound.

PREVIOUS：How is the Q value standard of the inductor dNEXT：Inductor Coil Basics_Inductance Coil Main Per