Rheostats Manufacturer,Supplier and Exporter in India
Product Code : EL-PLE-10862
Quick Answer: The Rheostat is an open, slide wire variable resistor with a constantan resistance wire, three 4 mm standard terminals and bakelite end supports, used as a series resistor or as a potentiometer.
Last updated: October 2026
Key Features
- Open, slide wire type
- Constantan wire used as the resistance
- Three 4 mm standard terminals: one at each end of the wire and one on the slider rod
- Can be used as a series resistor or as a potentiometer
- Resistance in ohms and current carrying capacity marked on each unit
- End supports made of bakelite
Technical Specifications
| Specification | Value |
|---|---|
| Construction | Open slide wire type |
| Resistance wire | Constantan |
| Types listed | Nichrome type; bell terminal, continuous constantan type |
| Terminals | Three 4 mm standard terminals |
| End supports | Bakelite |
| Ranges | 10, 20, 30, 50, 100 and others |
| Marking | Resistance in ohms and current carrying capacity |
About This Product
A rheostat is a variable resistor used to change the current in a circuit. Connected as a series resistor, it limits the current. Connected through the terminal on the slider rod, it works as a potential divider, which is useful in experiments such as verifying Ohm's law or plotting the characteristic of a lamp or diode. Students slide the contact along the resistance wire to change the resistance.
Frequently Asked Questions
Q1. What terminals does the Rheostat have?
It has three 4 mm standard terminals: one at each end of the wire and one at the end of the slider rod, so it can also be used as a potentiometer.
Q2. What are the end supports made of?
The end supports are made of bakelite.
Q3. What ranges are listed for the Rheostat?
The ranges are listed as 10, 20, 30, 50, 100 and others. The resistance in ohms and the current carrying capacity are marked on each unit.
Related: Physics Lab Equipment, Ohm Meter, Multi-Range Meter.
For a quotation on the Rheostat, contact School Lab Equipment India.