Quick Answer: The Wire Wound Potentiometer/Simple Rheostat is a 3 watt wire wound potentiometer set in a moulded plastic casing, with a knob on the cover for varying the resistance. It is listed in 50, 100, 250 and 500 ohm values.
Last updated: October 2026
Key Features
Wire wound potentiometer rated 3 watts
Moulded plastic casing with a control knob for varying resistance
Three 4 mm sockets for a potential divider arrangement
Calibration printed on the cover plate beside the knob
Offered in 50, 100, 250 and 500 ohm values
Technical Specifications
Specification
Value
Type
Wire wound potentiometer
Power rating
3 Watts
Resistance values
50, 100, 250 and 500 ohms
Casing
Moulded plastic
Terminals
Three 4 mm sockets
About This Product
A simple rheostat like this lets students vary the resistance in a circuit, or tap off a variable voltage through the potential divider connection. The printed calibration helps learners read the setting directly while they take meter readings in electricity practicals.
Frequently Asked Questions
Which resistance values can be ordered?
The potentiometer is listed in 50, 100, 250 and 500 ohm values, each rated at 3 watts.
