What is an inductive coil

The electrical characteristics of an inductor coil are opposite to those of a capacitor, 'passing low frequencies and blocking high frequencies'. When high-frequency signals pass through inductors, they encounter a large resistance and are difficult to pass through. But the resistance to low-frequency signals passing through it is relatively small, which means that low-frequency signals can easily pass through. The resistance of an inductive coil to direct current is negligible.

The coil is wound around an insulated tube with wires that are mutually insulated. Insulated pipes can be hollow or contain iron cores or magnetic powder cores.

Induction coil is a device that operates based on the principle of electromagnetic induction. When current flows through a wire, a certain electromagnetic field is generated around the wire, and the wire itself induces the wire within the electromagnetic field. The effect of generating an electromagnetic field on the wire itself is called "self induction", which means that the changing current generated by the wire itself produces a changing magnetic field, which in turn affects the current in the wire; The effect on other wires in this electromagnetic field is called "mutual inductance".

Difference between Inductive Coil and Inductor

Inductance coil is an important component of inductance. Because inductors are generally composed of a skeleton, winding (coil), shielding cover, packaging material, magnetic core or iron core, etc.

An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to a transformer, but it only has one winding. Inductance has a certain degree of inductance, but it hinders the change of current. If the inductor is in a state of no current passing through, it will attempt to block the flow of current when the circuit is conducting; If the inductor is in a current passing state, it will try to maintain the current as constant as possible when the circuit is disconnected. Inductors are also known as chokes, reactors, and dynamic reactors.

Induction coil is a device that operates based on the principle of electromagnetic induction. When current flows through a wire, a certain electromagnetic field is generated around the wire, and the wire itself induces the wire within the electromagnetic field. The effect of generating an electromagnetic field on the wire itself is called "self induction", which means that the changing current generated by the wire itself produces a changing magnetic field, which in turn affects the current in the wire; The impact on other wires within this electromagnetic field range.