Function of Inductance coil

"Inductance coil is a device that works based on the principle of electromagnetic induction. When a current flows through a wire, a certain electromagnetic field will be generated around the wire, and the wire of the electromagnetic field itself will induce the wire within the range of the electromagnetic field. The effect on the wire that generates the electromagnetic field itself is called" self induction " "That is, the changing current generated by the conductor itself generates a changing magnetic field, which further affects the current in the conductor; the effect on other conductors within the electromagnetic field is called" mutual inductance "."