Wire Wound Rheostat 12 Inch

The wire wound rheostat 12 inch is a laboratory variable resistor used for changing electrical resistance and controlling current in experimental circuits. It is intended for supervised school, college and technical physics laboratories, where students can investigate resistance, current, voltage and basic electrical circuit behaviour through hands-on experiments.

Product Description

The STEMAids Wire Wound Rheostat 12 Inch is an adjustable resistance apparatus for practical electricity experiments. In a wire-wound rheostat, a movable contact changes the effective length of resistance wire in the circuit, allowing the resistance to be varied progressively during an experiment.

The apparatus is suited to classroom demonstrations and quantitative laboratory work involving electrical resistance and current control. The product name confirms a nominal 12-inch size and wire-wound construction. The exact resistance range, current rating, resistance-wire alloy, former material, terminal material, weight and overall dimensions have not been verified for this specific model and are therefore not stated.

Key Features

• Wire-wound variable resistance: Provides adjustable resistance for compatible laboratory electrical circuits.
• 12-inch nominal size: Identifies the stated size of this laboratory rheostat model.
• Sliding resistance adjustment: Enables progressive changes in effective circuit resistance during an experiment.
• Current-control function: Helps students observe how changing resistance influences circuit current.
• Hands-on physics learning: Supports practical investigation of voltage, current and resistance relationships.
• Laboratory-oriented design: Intended for supervised school, college and technical-training experiments.
• Reusable teaching apparatus: Suitable for repeated practical sessions when operated within the confirmed electrical ratings.

Technical Specifications

What’s Included in the Kit

• One Wire Wound Rheostat 12 Inch

Connecting leads, power supplies, meters and other accessories are not listed as included because their inclusion has not been verified for this specific product.

Applications / Uses

• Demonstrating variable electrical resistance.
• Controlling current in suitable DC laboratory circuits.
• Supporting Ohm’s law experiments.
• Investigating relationships between voltage, current and resistance.
• Demonstrating the working principle of a rheostat.
• Supporting school, college and technical physics practicals.

For related equipment, explore STEMAids physics lab equipment, electrical and electronics laboratory equipment, the Constantine wire rheostat, and the 100 Ω variable resistance apparatus.

How to Use the Wire Wound Rheostat 12 Inch

1. Switch off the laboratory power source before making electrical connections.
2. Connect the rheostat according to the circuit diagram for the experiment.
3. Set the movable contact to the required starting position.
4. Switch on the power supply and observe the connected measuring instruments.
5. Move the contact gradually to change the effective resistance.
6. Record the corresponding current or voltage readings required by the experiment.
7. Switch off the power before changing connections or dismantling the circuit.

Safety note: Confirm the resistance, current and power ratings of the exact rheostat before energising a circuit. Do not exceed its rated limits, and use electrical laboratory apparatus under appropriate supervision.

Care & Maintenance

• Keep the rheostat clean and dry when not in use.
• Move the sliding contact smoothly and avoid excessive force.
• Inspect the resistance winding, slider and terminals for visible damage before use.
• Disconnect the apparatus completely from the power source before cleaning or storage.

Why Choose STEMAids

STEMAids is the STEM education brand of Eduscope Smart Learning Solutions Private Limited, a New Delhi-based manufacturer serving educational and laboratory requirements. Its portfolio includes physics laboratory apparatus, STEM kits, teaching-learning materials and educational science models. The company states that it maintains an active Importer-Exporter Code for international supply and supports institutional and tender procurement. Product-specific electrical specifications should still be confirmed before specification-sensitive orders.

Frequently Asked Questions

What is a wire wound rheostat used for?

A wire wound rheostat is used to vary resistance in an electrical circuit. In physics laboratories, it allows students to observe how resistance changes affect current and voltage.

How does a wire wound rheostat work?

A movable contact changes the effective length of resistance wire used in the circuit. Changing that length changes the effective resistance.

Can this rheostat be used for an Ohm’s law experiment?

Yes. A rheostat can be incorporated into a suitable Ohm’s law circuit with a compatible power source, ammeter, voltmeter and test resistance.

What is the resistance rating of this 12-inch rheostat?

The resistance rating for this exact STEMAids model has not been verified. Buyers should confirm the required resistance and current ratings before ordering.

What material is the resistance wire made from?

The resistance-wire alloy for this exact model has not been verified. No specific alloy is stated here to avoid transferring specifications from a different STEMAids rheostat.

Is the Wire Wound Rheostat 12 Inch suitable for schools?

Yes. Its function is suitable for supervised school, college and technical laboratory experiments involving resistance, current control and basic electrical circuits.