A rheostat is an electrical component that has an adjustable resistance. It is a type of potentiometer that has two terminals instead of three. The two main types of rheostat are the rotary and slider. The symbol for a rheostat is a resistor symbol with an arrow diagonally across it. Rheostats are used in many different applications, from light dimmers to the motor controllers in large industrial machines.
Rheostat Sliding Contact
Rheostats are used as series resistors or potentiometers. Open slide wire type with a variety of resistance and current carrying capacity. Copper nickel alloys wire is oxidized to provide perfect insulation Rheostats are used as series resistors or potentiometers.
Rheostats are mainly used for regulating electric current in industry and laboratory where these are used as adjustable resistors in electrical circuits.
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