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<math>I = 0.4A</math>
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===Examples===
{| class="wikitable"
|-
|[[File:VariableResistor.png|center|100px]]
|[[File:Rheostat.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |This '''variable resistor''' can be turned to change the [[Electrical Resistance|resistance]].
| style="height:20px; width:300px; text-align:center;" |This '''variable resistor''' is known as a [[Rheostat]]. The slider can be moved to change [[Electrical Resistance|resistance]].
|}