Electronics Information Electronic Components Flash Card Set 285143

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Resistors

Resistors are used to limit voltage and/or current in a circuit and can have a fixed or variable resistance. Variable resistors (often called potentiometers or rheostats) are used when dynamic control over the voltage/current in a circuit is needed, for example, in a light dimmer or volume control.

variable

__________ resistors are often called potentiometers or rheostats.