Rheostats 30 Ohms- Continuous Constantine Type

Description:

This is an open-type slide wire rheostat where the resistive wire is made of Constantan, a copper-nickel alloy with a very low temperature coefficient of resistance, which ensures stable resistance across temperature changes.

It uses a sliding contact (wiper) that moves along the wire coil wound on an insulating cylinder to vary the length of the resistive path.

There are three terminals: two fixed connected to wire ends and one connected to the sliding contact, allowing continuous resistance variation.

Ideal for use in laboratories for experiments and teaching electrical principles; suitable for applications needing variable current control.

This rheostat type provides precise current control by changing resistance in a circuit from near zero to the rated 30 Ohms.

Construction often includes a vitreous enamel-coated cylindrical base with the resistive wire wound for durability