Potentiometers and rheostats differ in that:
A)potentiometers utilize linear and nonlinear tapers, while rheostats usually utilize only linear tapers.
B)potentiometers are used to vary voltages, while rheostats vary currents.
C)potentiometers utilize three terminals, while rheostats usually use only two terminals.
D)all of these.

Question

Quizplus · Accepted Answer

Potentiometers can have linear or nonlinear tapers and are used to vary voltages with three terminals, while rheostats typically have linear tapers, are used to vary currents, and usually use two terminals.

Potentiometers and Rheostats Differ in That