What is the difference between an inductor and an inductor coil?

An inductor is an element that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but with only one winding. Inductors have a certain inductance, which only hinders the change of current. If the inductor is in a state where no current is flowing, when the circuit is on, it will try to prevent current from flowing; if the inductor is in a state where current is flowing, it will try to maintain current when the circuit is off. Inductors are also known as chokes, reactors, and dynamic reactors.

Inductance coil is a kind of equipment that uses the principle of electromagnetic induction. When current flows through a wire, a certain electromagnetic field is generated around the wire, and the wire of the electromagnetic field itself will induce the wire in the electromagnetic field range. The effect of generating an electromagnetic field on the wire itself is called "self-inductance", I .e., the varying current (chan) generated by the wire itself produces a varying magnetic field, and this field further affects the current in the wire; the effect produced on other wires within the range of this electromagnetic field.