Toroidal Common Mode Choke Adjustable Inductor Coil Adjustable Inductor Coil

Coil usually refers to the ring-shaped wire winding. The most common coil applications are motor, inductance, transformer and ring antenna. The coil in a circuit is an inductor. It means that the conductors are wound up one by one, and the conductors are insulated from each other. The insulating tubes can be hollow or contain iron core or magnetic powder core, or inductance for short. Inductance can also be divided into fixed inductance and variable inductance. Fixed inductance coil is called inductance or coil for short. In terms of L, the units are Henry (H), milliHenry (mH), microHenry (uH), and 1H = 10 ^ 3mH = 10 ^ 6uH.