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===Meaning===
[[File:VariableResistorSymbol.png|right|300px|thumb|The symbol for a '''variable resistor'''.]]
A '''variable resistor''' is a [[resistor]] which can have its [[Electrical Resistance|resistance]] changed.
===About Variable Resistors===
: A '''variable resistor''' can be used to control the [[Electrical Current|current]] passing through a [[circuit]]. If the [[Potential Difference|potential difference]] is constant then the [[Electrical Current|current]] decreases as the [[Electrical Resistance|resistance]] of the '''variable resistor''' increases.
: A '''variable resistor''' can be used to control the [[Potential Difference|potential difference]] of another [[Electrical Component|component]] in [[Series Circuit|series]] with it. If the [[Electrical Resistance|resistance]] of the '''variable resistor''' is increased the [[Potential Difference|potential difference]] across other [[Electrical Component|components]] will decrease.