Induction Coil Apparatus
Product Code : SCL-PLE-11753
The JLab India Induction Coil Apparatus (Rhumkorff Coil) is a high-tension electromagnetic device engineered for the empirical study of mutual induction and the generation of high-voltage sparks from a low-voltage DC source. Optimized for Secondary and University-level physics, this apparatus is essential for demonstrating the principles of transformers and for powering vacuum discharge tubes (Geissler tubes). It facilitates the quantification of spark gap potential and the verification of Faraday’s Law within institutional laboratory environments.
Technical Specifications
| Tender Specification | OEM Technical Detail |
| Spark Length | Available in 10mm, 25mm, 50mm, and 100mm variants |
| Primary Coil | Heavy-gauge enameled copper wire wound on a laminated iron core |
| Secondary Coil | Thousands of turns of fine enameled copper wire, multi-layer insulated |
| Interrupter | Adjustable platinum/tungsten contact points for high-frequency switching |
| Condenser | Integrated high-voltage capacitor to minimize arcing at contact points |
| Input Power | 6V–12V DC (via Battery Eliminator or Lead-Acid Battery) |
| Chassis Construction | Polished seasoned hardwood or high-impact polymer base |
| Safety Features | Insulated handles for spark-gap adjustment and polarity reversing switch |
Certification | ISO certificates available on request |
| HS Code | 9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Mutual Induction Interface: Facilitates student visualization of how a rapidly changing magnetic field in the primary coil induces a high EMF in the secondary coil, supporting Electromagnetism Module 201.
- Voltage Transformation Quantification: Enables the physical study of turns-ratio and induction efficiency, allowing learners to apply the concept of high-voltage generation to estimate the dielectric strength of air.
- Waveform and Discharge Analysis: Supports the analysis of electrical discharge in gases when used in conjunction with vacuum tubes, demonstrating the transition from sparks to glow discharge.
- Circuit Component Evaluation: Allows students to evaluate the role of the capacitor (condenser) in suppressing "back-EMF" at the interrupter, ensuring a sharp collapse of the magnetic field for maximum secondary output.
International Logistics & Compliance
JLab India ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring rigid internal stabilization to protect the delicate secondary windings and the sensitive interrupter mechanism from vibrational stress.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed Operating Manual with safety protocols.
- Durability: Tropicalized design featuring vacuum-impregnated coils and moisture-resistant insulation, tested to prevent "flashover" in high-humidity laboratory environments.
Direct OEM Sourcing Advantages
Procuring the JLab India Induction Coil Apparatus directly ensures vertical manufacturing control:
- In-House High-Voltage Testing: Every unit is stress-tested to its maximum rated spark length to ensure the internal insulation can withstand the extreme potential differences generated.
- Precision Interrupter Calibration: Every unit is batch-tested for timing consistency, ensuring a steady and reliable spark for consistent classroom demonstrations.
- Direct Factory Spares Availability: Guaranteed availability of replacement interrupter contact points, capacitors, and spark-gap electrodes to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the coil-winding and insulation process ensures that the secondary coil is free from internal shorts, providing a safe and reliable high-voltage source for years of use.
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