Rheostats 20 Ohms- Continuous Constantine Type

The Rheostats 20 Ohms - Continuous Constantine Type is a variable resistor used to control electric current by adjusting resistance in a circuit smoothly.

Key description points:

It is an open-type slide wire rheostat with a resistive wire made of Constantan, a copper-nickel alloy known for low temperature dependence, ensuring stable resistance.

The device allows continuous variation of resistance by sliding a contact along the wire coil, changing the wire length in the circuit.

Consists of three terminals: two at wire ends and one sliding contact for adjustment.

Mainly used in physics laboratories for experiments and demonstrations requiring variable current control.

The resistive wire is wound on an insulating cylinder, often vitreous enamel-coated for durability.

Provides precise resistance adjustment and is valued for accuracy, thermal stability, and ease of use in experimental setups