Quick Answer: The Rheostat 8 Inches is a linear variable resistor for current regulation and voltage division, with oxidised alloy wire wound on a vitrified ceramic core. Its active winding is 200 mm (8 inches) long.
Last updated: October 2026
Key Features
Active winding length 200 mm (8 inches)
Oxidised alloy wire on a vitrified ceramic core
Three-terminal layout with 4mm binding posts
Low-friction metal wiper and insulated handle
Die-cast metal end supports, chemical-resistant coated
Technical Specifications
Specification
Value
Winding
Oxidised alloy wire on vitrified ceramic core
Active length
200 mm (8 inches)
Terminals
Three, 4mm binding posts
Slider
Metal contact wiper with insulated handle
End supports
Die-cast metal, chemical-resistant coating
About This Product
In school circuits the 8 inch rheostat is the everyday control for current: wired in series it trims the current through a lamp or resistor, and across a supply it divides the voltage. It is a mid-size choice for Ohm’s law and general circuit analysis on a crowded bench. Educational Instrument can dispatch the Rheostat 8 Inches to laboratories in Mongolia, Saudi Arabia, Qatar, North Macedonia and Afghanistan.
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