ABSTRACT
Capacitors and inductors are examined together because these two components are very closely related, despite being markedly different in structure and operation. After resistors, capacitors are the most commonly encountered component in typical audio electronic circuitry. Capacitors can also be said to exhibit what from many perspectives is the widest variety of different types and subtypes of any electronic component. Inductors are used only quite rarely in audio circuits. They tend to be bulky, expensive, and nonlinear. One very common source of interference and unwanted noise in electronic circuits is through the pickup of radio frequency (RF) signals from the air. With the stated primary behaviour of an inductor bing that it passes low frequencies and blocks high frequencies, it would seem reasonable to suggest that the inductor might prove an effective tool in the suppression of unwanted RF interference in audio signals, and this is indeed the case.
