Chapter 8

Identifying with Inductors

In This Chapter

arrow Inducing currents in coils with a changing magnetic field

arrow Opposing changes in current with an inductor

arrow Using inductors in filter circuits

arrow Resonating with RLC circuits

arrow Making frequencies crystal-clear

arrow Coupling magnetic flux to transfer energy between circuits

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Many of the best inventions in the world, including penicillin, sticky notes, champagne, and the pacemaker, were the result of pure accidental discovery. One such serendipitous discovery — the interaction between electricity and magnetism — led to the development of two amazingly useful electronic components: the induction coil and the transformer.

The induction coil, or inductor, stores electrical energy in a magnetic field and shapes electrical signals in a different way than ...

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