High current inductor
Working principle of high current inductor:
Inductance is the ratio of the magnetic flux of the wire to the current producing the magnetic flux of the wire to the current producing the alternating current flowing through the wire. When the direct current flows through the inductor, only a fixed magnetic field line will appear around the inductor and will not change with time.
However, when alternating current passes through the coil, magnetic field lines that change with time appear around the coil. According to Faraday's Law of electromagnetic induction - magnetoelectric analysis, changing magnetic field lines generate an induced potential at both ends of the coil, which is equivalent to a "new power source." When a closed loop is formed, this induced potential generates an induced current.
The total amount of magnetic field lines generated by induced current in the Lentz law of hollow inductors is to prevent changes in magnetic field lines. The change of the magnetic field line comes from the change of the external AC power supply, so from the objective effect, the inductor has the characteristics of preventing the current change in the AC circuit. Induction coils have properties similar to inertia in mechanics and are electrically called "self-inductance", usually when the knife switch is pulled or opened, it will produce a spark, which is caused by a high induction potential.
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