Rheostat 12 Inches Manufacturer,Supplier and Exporter in India
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Product Code : SCL-OS-12288
Quick Answer: The Rheostat 12 Inches is a sliding variable resistor with oxidised alloy wire wound on a ceramic tube over a 300 mm (12 inch) active length. A metal wiper with an insulated handle runs along the winding between three 4mm binding posts.
Last updated: October 2026
Key Features
- 300 mm (12 inch) active winding length
- Oxidised alloy resistance wire on a heat-resistant ceramic tube
- Three 4mm binding posts
- Metal contact wiper with an insulated handle
- Die-cast metal end supports with a chemical-resistant coating
Technical Specifications
| Specification | Value |
|---|---|
| Core | Insulated ceramic tube |
| Resistance element | Oxidised alloy wire |
| Active length | 300 mm (12 inches) |
| Terminals | Three 4mm binding posts |
| Slider | Metal contact wiper, insulated handle |
| Supports | Die-cast metal, chemical-resistant coating |
About This Product
Moving the slider changes how much of the winding is in circuit, so one rheostat can set the current in a series circuit or, using all three terminals, act as a potential divider. The long 12 inch winding gives fine steps when taking readings for V-I graphs and Ohm’s law practicals.
Frequently Asked Questions
Can the Rheostat 12 Inches be used as a potential divider?
Yes. It has three terminals, so it can be wired as a variable resistor in series or as a voltage divider across a supply.
Related: Optical Sectional, Rheostat 10 Inches, Rheostat 8 Inches and Sliding Rheostat Dual Tube.
For a quotation on the Rheostat 12 Inches, contact Educational Instrument.
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