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Potentiometer, 10 wire
Potentiometer, 10 wire (Product Code: SCL-343/070) is a ten-metre slide-wire potentiometer used to compare the emf of cells and measure internal resistance in college and senior school physics laboratories. Ten 1 m lengths of 24 SWG bare constantan wire run over a centimetre- and millimetre-divided scale on a powder-coated aluminium extrusion, giving a long wire for fine balance readings. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Number of wires | 10 wires, 1 m each (10 m in total) |
| Wire type | 24 SWG bare constantan |
| Scale | Metre rule sub-divided in centimetres and millimetres |
| Mounting | Powder-coated aluminium extrusion |
| End clamping | Brass plates making contact at the exact ends of the scale, leaving virtually no margin for end errors |
| Terminals | Heavy-duty 4 mm socket terminals |
| Supplied with | Jockey |
| Product code | SCL-343/070 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the 10-Wire Potentiometer Used For?
A steady driver cell sends current through the full length of wire, so the potential falls uniformly along it; a test cell connected through a galvanometer and the jockey is then balanced at the point where no current flows. Because the test cell supplies no current at balance, the potentiometer measures its true emf, which an ordinary voltmeter cannot do.
Standard experiments include comparing the emfs of two primary cells with a two-way key, finding the internal resistance of a cell using a resistance box, and calibrating an ammeter or voltmeter. A rheostat in the driver circuit sets the potential gradient; keep it unchanged through a set of readings and tap the jockey only lightly. These tasks make it a core item for potentiometer lab practicals.
What to Specify When Ordering
- Number of potentiometers needed per laboratory.
- Whether a driver supply, rheostat, two-way key and galvanometer should be quoted with it.
- Any spare jockeys for student batches.
OEM Manufacturer
The 10-wire potentiometer is produced by Jain Scientific Equipments Private Limited, which trades as ScienceLab and is the OEM, at its own licensed factory at Saha, Ambala, Haryana, India. The company is a registered MSME enterprise (Udyam UDYAM-HR-01-0003714) and ships export consignments under Importer-Exporter Code AAECJ8618A issued by the DGFT. Universities, schools and importers therefore buy direct from the manufacturer, which also handles repeat orders. See the company profile for more.
Related Physics Lab Equipment
Emf comparison and internal-resistance experiments on this potentiometer call for cells, a key, a rheostat and a detector:
- Leclanche Cell — a primary cell whose emf can be measured or compared.
- Deniel Cell — a second cell type for emf comparison.
- Two Way Key — switches between the two cells without rewiring.
- Rheostat 30 Ohm — adjusts the current in the driver circuit.
- Moving Coil Galvanometer — shows the null point.
Browse further electricity apparatus in the Physics Lab category.
Frequently Asked Questions
How long is the wire on the Potentiometer, 10 wire?
The Potentiometer, 10 wire carries ten separate 1 m lengths of 24 SWG bare constantan wire, giving 10 m of wire in total. The long wire lowers the potential gradient, so each centimetre of balancing length represents a smaller voltage and readings are finer.
What experiments is the 10-wire potentiometer used for?
The Potentiometer, 10 wire is used to compare the emfs of two cells, to find the internal resistance of a primary cell and to calibrate voltmeters and ammeters. All of these rely on the null-deflection principle, so the cell under test supplies no current at balance.
What else is needed to use the Potentiometer, 10 wire?
The Potentiometer, 10 wire is supplied with a jockey. A complete set-up also needs a steady driver supply, a rheostat, a galvanometer, a plug or two-way key, cells under test and 4 mm connecting leads; ScienceLab can quote these together.
How does the potentiometer keep end errors small?
The constantan wires of the Potentiometer, 10 wire are clamped to brass plates by a system that makes electrical contact at the exact ends of the scale. This leaves virtually no margin for end errors when balancing lengths are read off the centimetre and millimetre divisions.
Who manufactures the Potentiometer, 10 wire?
Jain Scientific Equipments Pvt Ltd (ScienceLab) manufactures the Potentiometer, 10 wire as the OEM at its own licensed factory in Saha, Ambala, Haryana, India. Quotations for institutions, dealers and importers come directly from the manufacturer, which also supports repeat supply.
Can the Potentiometer, 10 wire be supplied for export?
Yes, the Potentiometer, 10 wire is supplied to buyers in India and international markets. Share the quantity, destination and any accessories through the contact page, and the manufacturer will send a quotation with the details needed for your order.
Request a Quote
Send your Potentiometer, 10 wire requirement through the contact page or add it to the enquiry cart. As the manufacturer, ScienceLab quotes directly.
Last updated: 24 September 2026
