What ia a reostat switch?

Answer:
A rheostat is a variable resistor. Examples are a volume control knob or an instrument panel dimmer switch. As the resistance is increased in the switch the volume will lower or the instrument panel lights will dim.
First answer by Baldfatguy. Last edit by Baldfatguy. Contributor trust: 2032 [recommend contributor recommended]. Question popularity: 2 [recommend question].