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Apparatus for Studying the Dependence of Electrical Resistance on the Factors that Determine it
Apparatus for Studying the Dependence of Electrical Resistance on the Factors that Determine it (Product Code: SCL-361/020) is a wire-resistance experiment set used to show how a conductor's resistance depends on its thickness and material, in school and college physics practicals. It pairs 24 SWG and 30 SWG conducting wires, plus copper and iron 30 SWG wires, with a 2–14 V AC/DC, 6 A supply and digital meters. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Power supply | 2–14 V AC/DC, 6 A |
| Meters | Digital ammeter and digital voltmeter |
| Conducting wires | 2 pairs, 24 SWG; 2 pairs, 30 SWG |
| Copper wires | 2 pairs of guide wires, copper, 30 SWG |
| Iron wires | 2 pairs of guide wires, iron, 30 SWG |
| Connecting leads | 2 pairs, 4 mm, 100 cm, red and black; 2 pairs, 4 mm, 50 cm, red and black |
| Product code | SCL-361/020 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Electrical Resistance Apparatus Used For?
The resistance of a conductor depends on its material, its length and its cross-sectional area, and this set lets students isolate those factors one at a time. Comparing the 24 SWG and 30 SWG conducting wires shows the effect of thickness — the higher SWG number is the thinner wire, with the greater resistance — while comparing copper and iron wires of the same 30 SWG gauge shows the effect of material. For each wire, students apply a voltage from the supply, read current and voltage on the digital meters and calculate R = V/I.
If your syllabus also covers length, the same method is applied to different lengths of one wire. Use the DC output and keep currents modest, because a wire that warms up changes its resistance and spoils the comparison; switch off between readings to let it cool. As an Ohm's law experiment kit for schools in India and international markets, the set leads naturally to the formula R = ρL/A and the idea of resistivity.
What to Specify When Ordering
- The number of sets needed for your practical groups.
- Whether extra wire pairs of a particular gauge or material should be included.
- Whether a screw gauge or resistance box should be quoted for extension work.
- The delivery city or country, for packing and freight.
OEM Manufacturer
This resistance apparatus is produced by Jain Scientific Equipments Private Limited under its ScienceLab brand, making the company its original equipment manufacturer. The set is assembled at the licensed factory in Saha, Ambala, Haryana, India, and schools, colleges, dealers and importers purchase it straight from the manufacturer.
Replacement wires or leads and repeat orders are organised by the factory team itself — ask us. The ScienceLab profile gives more background on the company.
Related Laboratory Equipment
Apparatus that supports or extends the resistance experiments:
- Apparatus for Studying Circuits for Series and Parallel Connections — the companion set for circuit arrangements.
- Ohm's Law Apparatus — the voltage–current relationship behind every resistance reading.
- Screw Gauge — measures wire diameter so the cross-sectional area can be calculated.
- Resistance Box — known resistances for comparison.
- Galvanometer Kit — bridge methods for finer resistance measurement.
Find more electricity apparatus in the Laboratory Equipment category.
Frequently Asked Questions
Which factors affecting resistance can be investigated?
The electrical resistance apparatus SCL-361/020 lets students investigate how resistance depends on wire thickness, by comparing 24 SWG and 30 SWG wires, and on material, by comparing copper and iron 30 SWG wires; different lengths of one wire extend the study to length.
What power supply and meters are included?
The electrical resistance apparatus SCL-361/020 includes a power supply delivering 2–14 V AC/DC rated 6 A, together with a digital ammeter and a digital voltmeter for measuring the current through and voltage across each test wire.
Which wires and leads come with the apparatus?
The electrical resistance apparatus SCL-361/020 supplies 2 pairs of 24 SWG and 2 pairs of 30 SWG conducting wires, 2 pairs each of copper and iron 30 SWG wires, and 4 mm leads in red and black: 2 pairs at 100 cm and 2 pairs at 50 cm.
Why should the current be kept low during readings?
In the electrical resistance apparatus SCL-361/020, a wire carrying a large current warms up and its resistance rises, which distorts the comparison between wires. Keeping currents modest and switching off between readings keeps the results consistent.
Who manufactures this electrical resistance apparatus?
The electrical resistance apparatus SCL-361/020 is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory at Saha, Ambala, Haryana, India, and is sold factory-direct to schools, colleges, dealers and importers.
What should a quotation request include?
For a quotation on the electrical resistance apparatus SCL-361/020, send the number of sets, any extra wires or leads, and your delivery city or country through the contact page. The manufacturer will reply with a quotation directly.
Request a Quote
Enquire about this resistance apparatus through the contact page or keep it in the enquiry cart until your list is complete. Quotations come from the manufacturer, with no reseller involved.
Last updated: 24 September 2026
