Resistance in Series and Parallel
Product Code : SCL-PLE-11731
The StemAids Resistance in Series and Parallel Apparatus is a foundational laboratory workstation designed for the empirical study of circuit laws and equivalent impedance. Optimized for Secondary and Technical Vocational (TVET) physics, this apparatus provides a pre-configured, switchable network of resistors to facilitate the quantification of total resistance. Manufactured to ISO 9001:2015 standards, it provides a stable environment for verifying Kirchhoff’s Voltage and Current Laws (KVL/KCL) within institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Resistor Array |
Precision wire-wound or metal film resistors (10Ω, 20Ω, 50Ω standard) |
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Circuit Modes |
Toggle switches for rapid configuration between Series and Parallel |
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Measurement Interface |
Onboard Analog or Digital Voltmeters and Ammeters |
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Input Power |
0–12V DC (via external Battery Eliminator or integrated supply) |
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Interface Hardware |
4mm color-coded safety shrouded binding posts |
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Chassis Construction |
High-impact ABS polymer or powder-coated metallic enclosure |
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Functional Principle |
Equivalent Resistance / Network Analysis |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Network Topology Interface: Facilitates student visualization of current paths in sequential (series) and branching (parallel) layouts, supporting Basic Electricity Module 101.
- Equivalent Resistance Quantification: Enables the physical study of impedance, allowing learners to apply the formulas Rtotal=R1+R2 and 1/Rtotal=1/R1+1/R2 to verify experimental results.
- Kirchhoff’s Law Analysis: Supports the analysis of voltage drops in series and current division in parallel branches using the integrated measurement meters.
- Circuit Efficiency Evaluation: Allows students to evaluate the impact of adding components to a circuit, observing how total current increases in parallel and decreases in series.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring anti-static internal stabilization and moisture-barrier protection for the internal resistor bank.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed Lab Manual with 10+ circuit experiments in English.
- Durability: Tropicalized design featuring high-grade FR-4 PCBs and oxidation-resistant terminals to ensure long-term functionality in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Resistance in Series and Parallel Apparatus directly ensures vertical manufacturing control:
- In-House Precision Testing: Every unit is batch-tested with a precision ohmmeter to ensure the onboard resistors remain within ±1% of their nominal values.
- Batch-Tested for Uniform Reliability: Switches are cycle-tested for low contact resistance to ensure experimental data is not skewed by mechanical wear.
- Direct Factory Spares Availability: Guaranteed availability of replacement resistors, meters, and patch cords to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the internal layout ensures minimal parasitic resistance, allowing for more accurate verification of theoretical circuit laws.
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