What is the substitution principle of inductance?
Inductor has a certain inductance, it only hinder the current changes
The inductor is similar in structure to the transformer but has only one winding.
An inductor (Inductor) is a device capable of converting electrical energy into magnetic energy.
If the inductor is in the absence of an electric current, it will try to block the current flowing through it when the circuit is switched on; if the inductor is in the state of current passing, it will try to keep the current constant when the circuit is disconnected.
