Digital Ohms Law Apparatus
Product Code : SCL-PLE-11848
The StemAids Digital Ohm’s Law Apparatus is a high-precision laboratory workstation engineered for the empirical verification of the fundamental relationship between voltage (V), current (I), and resistance (R). Unlike traditional analog setups that are prone to parallax errors, this digital interface features integrated high-resolution meters for simultaneous monitoring of electrical parameters. Manufactured to ISO 9001:2015 standards, it is the primary instrument for University and Technical College physics labs to quantify the linearity of ohmic conductors.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Regulated Power Supply |
Internal, continuously variable DC source (0–12V) |
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Digital Monitoring |
Dual 3.5 Digit LED/LCD displays for Voltage and Current |
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Voltmeter Resolution |
0.01V on a 0–20V scale |
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Ammeter Resolution |
1mA on a 0–2A scale |
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Load Components |
On-board fixed standard resistors (e.g., 10Ω,47Ω,100Ω) |
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Interface |
4mm safety-shrouded sockets for multi-meter integration |
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Chassis |
Robust metallic enclosure with high-contrast mimic diagram |
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Protection |
Short-circuit protected supply and internal glass fuse |
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ISO Compliance |
Manufactured under ISO 9001:2015 Quality Management Systems |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Fundamental Interface: Facilitates student understanding of the direct proportionality between potential difference and current, supporting the core curriculum of Electrodynamics.
- V-I Quantification: Enables the physical plotting of the Ohm's Law graph; learners apply varying voltages and record the corresponding current to verify V∝I.
- Resistance Analysis: Supports the analysis of slope (m=ΔV/ΔI); students evaluate the experimental data to calculate the resistance value of unknown conductors.
- Data Integrity Evaluation: Allows students to evaluate measurement uncertainty; the digital readout ensures high-fidelity data acquisition, reducing human error in the calculation of R=V/I.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant). The apparatus is secured in anti-static (ESD) foam to protect the digital logic and sensitive display modules during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed laboratory manual with standardized experimental procedures.
- Durability: Tropicalized design featuring moisture-resistant PCBs and UV-stabilized panel printing, ensuring the circuit mimic remains legible after years of intensive student use.
Direct OEM Sourcing Advantages
Procuring the StemAids Digital Ohm’s Law Apparatus directly ensures vertical manufacturing control:
- High-Stability Supply: We utilize precision internal regulation to ensure the variable DC source is free from "jitter," allowing for perfectly linear V-I plots.
- Calibrated Resistance Standards: Direct oversight of the internal load resistors ensures they have a low temperature coefficient, preventing resistance drift during prolonged experiments.
- Direct Factory Spares Availability: Guaranteed availability of replacement digital meter modules, multi-turn potentiometers, and safety terminals to maximize the long-term ROI.
- Manufacturing Control: Direct oversight of the grounding (earthing) and insulation resistance testing ensures the highest level of operator safety for students.
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