\r \r \r Q.Please explain how an inductor (a coil) functions. \r \rInductors (Coils) >  \rInductors (Coils) >  \rInductors (Coils) \r A. \rAn 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. \r \rInductors have the following specific application purposes: \r \r Dividing necessary signals and unnecessary signals (filtering) \r Stabilizing voltage in a power circuit (smoothing) \r Matching impedance in a high frequency circuit \r \r \r \r \r \r product portal \r Inductors (Coils) product information \r \r \r \r Inductors (Coils) Tech Notes \r Published selection guides, product overviews, application notes, and other materials providing information on our latest products. \r \r \r \r Reference materials \r TDK Inductor's World Guidebook for TDK Inductors & Noise Suppression Components \r \r \r \r Contact Information \r   Inquiries on products, sales, or technical matters \r \r \r \r