How are potentiometers typically connected?

Potentiometers are commonly used as voltage dividers, which is reflected in the correct answer. When a potentiometer is connected in this manner, it allows for the adjustment of an output voltage that is a fraction of the input voltage. This is achieved by varying the position of the wiper along the resistive element of the potentiometer.

In a typical voltage divider configuration, the potentiometer has three terminals: two connected to a voltage source and the middle terminal (the wiper) connected to an output. As the wiper is moved, the resistance on either side changes, thus altering the voltage level at the output terminal. This makes potentiometers very useful in applications that require control over voltage levels, like volume controls and adjustable sensors.

Other connection methods, such as in series or parallel arrangements, do not capture the primary function of a potentiometer as effectively as a voltage divider does. Although you can connect multiple potentiometers in series or parallel for specific functions, this isn't the typical use or the primary characteristic of potentiometers. Additionally, treating them as open circuits does not utilize their inherent voltage dividing capability.