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Q.Please explain how an inductor (a coil) functions.

Inductors (Coils) >  Inductors (Coils) >  Inductors (Coils)

A. An inductor has the functions of developing electromotive force in the direction that reduces fluctuation when a fluctuating current flows and storing electric energy as magnetic energy. It has the characteristic of allowing DC current to flow easily while presenting high resistance against the flow of high frequency currents.

Inductors have the following specific application purposes:

  1. Dividing necessary signals and unnecessary signals (filtering)
  2. Stabilizing voltage in a power circuit (smoothing)
  3. Matching impedance in a high frequency circuit

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