Potentiometer Resistance Taper
Potentiometers come with a resistance taper- either linear or log. This explains how a resistance changes in value as the wiper of the potentiometer is turned.
Linear Tapers: Linear taper potentiometers can change resistance in a linear fashion as you turn the wiper. They are the most common type of potentiometers and are widely used in potentiometer applications.
Log Tapers: Log taper potentiometers can change resistance logarithmically as you turn the wiper. They are mainly used in audio because its characteristics are suitable to the way our ears receive increasing or decreasing sounds. It gradually increases sound as the wiper is turned. Log taper potentiometers are perfect for audio applications, but that doesn’t mean they are not suitable for other applications.