Rheostat 10 Inches
Product Code : SCL-PLE-11801
The StemAids 10-Inch Sliding Rheostat is a precision electrical instrument engineered for the empirical study of current regulation and the principles of Ohm's Law. This 10-inch (approx. 250mm) model is specifically designed for space-efficient laboratory workstations while maintaining high resolution for resistance adjustment. Manufactured to ISO 9001:2015 standards, it provides a reliable means for quantifying electrical behavior in both Secondary and University-level physics modules.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Tube Length |
10 Inches (250mm) nominal |
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Resistive Element |
Oxidized Constantan (Eureka) wire for stable resistance |
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Core Material |
High-insulation vitrified ceramic tube |
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Standard Ratings |
Available in various combinations (e.g., 20Ω/5A,50Ω/3A,100Ω/1.5A) |
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Slider Mechanism |
Spring-loaded phosphor-bronze contact with an insulated handle |
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Terminal Access |
Three 4mm sockets (supports Rheostat and Potentiometer modes) |
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Base/Supports |
Heavy-duty metallic end-frames with non-slip rubber feet |
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Winding Type |
Side-by-side uniform winding for linear adjustment |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Resistance Interface: Facilitates student visualization of the relationship between conductor length and electrical resistance (R=ρL/A), supporting Electromagnetism Module 101.
- Current Quantification: Enables the physical study of circuit control, allowing learners to apply variable resistance to observe changes in current flow using ammeters and voltmeters.
- Potential Divider Analysis: Supports the analysis of voltage sharing; by utilizing the three-terminal configuration, students can evaluate how the rheostat acts as a potential divider to provide a variable output voltage.
- Measurement Accuracy Evaluation: Allows students to evaluate the importance of clean contact points and uniform winding in reducing "noise" or erratic readings during sensitive experiments.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring "Double-Cushion" foam molding to protect the ceramic core from mechanical impact and the slider rod from bending during maritime transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a datasheet specifying the maximum wattage and current limits.
- Durability: Tropicalized design featuring anti-oxidation coatings on the resistance wire and corrosion-resistant hardware to maintain performance in high-humidity environments.
Direct OEM Sourcing Advantages
Procuring the StemAids 10-Inch Rheostat directly ensures vertical manufacturing control:
- In-House Ceramic Quality: Every ceramic tube is batch-tested for thermal shock resistance, ensuring the core does not crack even when the wire is heated by high currents.
- Precision Contact Tension: Direct oversight of the slider assembly ensures the phosphor-bronze brush maintains consistent pressure, preventing "dead zones" during adjustment.
- Direct Factory Spares Availability: Guaranteed availability of replacement slider brushes, insulated knobs, and ceramic cores to maximize the long-term ROI of laboratory assets.
- Manufacturing Control: Direct oversight of the wire-winding process ensures that the oxidized layer is perfectly maintained, providing natural insulation between adjacent turns to prevent short-circuiting.
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