Apparatus for Studying the Dependence of Electrical Resistance on the Factors that Determine it
Product Code : SCL-PL-11826
Apparatus for Studying the Dependence of Electrical Resistance on the Factors that Determine it (SKU SCL-PL-11826) lets students measure how a wire's resistance changes with its length, thickness and material, using test wires of 24 and 30 SWG in copper and iron, a 2–14 V supply and digital meters. It fits Class 10 science and Class 12 physics. Science Lab Supplies manufactures the set in its Saha, Ambala factory (Plot 448, HSIIDC Industrial Area, India) and supplies it directly to schools, colleges, tender contractors and distributors.
Specifications
Resistance is found from voltage and current readings on a digital voltmeter and ammeter, with power from a 2–14 V AC/DC, 6 A supply. Paired test wires of two gauges and two materials let one factor be changed at a time while the others stay fixed.
| Parameter | Value |
|---|---|
| SKU | SCL-PL-11826 |
| Power supply | 2–14 V AC/DC, 6 A |
| Meters | Digital ammeter; digital voltmeter |
| Test wires by gauge | 2 pairs 24 SWG (about 0.56 mm); 2 pairs 30 SWG (about 0.32 mm) |
| Test wires by material | 2 pairs copper, 30 SWG; 2 pairs iron, 30 SWG |
| Connecting leads | 4 mm; 2 pairs 100 cm and 2 pairs 50 cm, red and black |
| Also included | Experiment demonstration table |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Resistance Factors Apparatus
The apparatus shows that resistance rises with length, falls as the cross-section grows and depends on the material. It follows the “factors on which resistance depends” activity of CBSE/NCERT Class 10 science and leads into resistivity in Class 12 physics, part of a school's electricity and magnetism lab kit.
- Class 10 science: resistance against length, joining two equal wires end to end to double the length.
- Class 10 science: effect of cross-section, comparing 24 SWG with 30 SWG wire.
- Class 12 physics: comparing copper and iron wires of the same gauge to introduce resistivity.
Standard Scope of Supply
Each set includes the 2–14 V power supply, the digital ammeter and voltmeter, two pairs each of 24 SWG, 30 SWG, copper 30 SWG and iron 30 SWG test wires, two pairs of 100 cm and two pairs of 50 cm 4 mm leads, and the experiment demonstration table.
Packing, MOQ and Lead Time
Quotations are available for one demonstration set or for every bench in a Class 10 laboratory, with the packing, delivery time and price set out for that quantity. Spare test wires, a rheostat or a multimeter can be added to the same quotation.
Science Lab Supplies has an Importer-Exporter Code as a registered exporter and is able to ship to buyers in Zambia, Rwanda, South Africa, Qatar, Sri Lanka and Vietnam. Write in through the contact page, list the items in the enquiry cart, or follow the lab tender page for tender enquiries.
Frequently Asked Questions
Which factors of resistance can this apparatus show?
It shows the effect of length, of cross-section (24 SWG against 30 SWG wire) and of material (copper against iron), measuring resistance each time from the voltmeter and ammeter readings.
What power supply is included?
A 2–14 V AC/DC supply rated at 6 A is part of the set. Use the DC output for resistance measurements and keep the current low so the thin wires do not heat up.
Is Science Lab Supplies the manufacturer or a trader?
Manufacturer. Science Lab Supplies produces this apparatus at its own factory in Saha, Ambala, India, and handles the quotation itself, so there is no trading firm between you and the maker.
Related Current Electricity Apparatus
Once students know what sets a wire's resistance, the next practicals combine resistors and look inside the cell. These four Physics Lab items continue that sequence and add current control and measurement, and all of them can be quoted together with this apparatus.
- Apparatus for Studying Circuits for Series and Parallel Connections — bulbs, cells and a magnetic board.
- Apparatus for Studying f.e.m. and Internal Battery and Battery Resistance — cells, meters and rheostat for EMF work.
- Rheostat — 10 Ω rheostat with 4 mm safety sockets.
- Digital Multimeter — resistance ranges from 200 Ω to 2000 kΩ for checking the test wires.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
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