Potentiometers are manually-adjustable variable resistors commonly referred to as speed pots, or pot meters.
The nomenclature of modern electronics is densely populated by various potentiometers, trimmers and resistors that largely operate on the same basic premise: they assist with monitoring or controlling either the voltage or current passing through an electrical system. Among the most fundamental of these electrical components is the resistor; a passive dual-terminal component with a pre-defined electrical resistance. This is essential for inhibiting current flow, terminating transmission signals, and other uses. A practical limitation of the ubiquitous resistor is the constancy of the material’s electrical resistance, which is why variable resistors were developed.
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