This sliding rheostat (variable resistor) provides smooth, continuous resistance adjustment from 0 to 20 ohms, rated at a maximum current of 2A. Designed for laboratory experiments, physics education, and electronics testing, it allows precise control over voltage and current in a circuit.

Specifications

Resistance Range | 0 – 20 Ω

Maximum Current | 2 A

Dimensions | 170 mm × 65 mm

Mounting | Stable flat-base stand

Key Features

• Smooth sliding control — A brass sliding contact glides along a resistance wire coil for stepless resistance adjustment

• Sturdy construction — Metal frame with a solid ceramic/porcelain core wound with resistance wire, built for durability

• Stable base — Black steel mounting feet keep the unit firmly in place during use

• Safety terminals — Red-capped binding posts at each end for secure wire connections

• Labeled & identifiable — Clearly marked label displaying rated specs (2A / 20Ω) for quick identification

Applications

• Physics and electronics classroom experiments

• Circuit voltage and current adjustment

• DIY electronics and prototyping

• Lab demonstrations of Ohm's Law