Resistor VariableA variable resistor is a resistor of which the electric resistance value can be adjusted. When only two terminals are used, it functions as a variable resistance and is called a rheostat. Electronically controlled variable resistors exist, which can be controlled electronically instead of by mechanical action.
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Avariable resistoris aresistorof which the electric resistance value can be adjusted. When only two terminals are used, it functions as avariableresistance and is called a rheostat. Electronically controlledvariable resistorsexist, which can be controlled electronically instead of by mechanical action.