Constantan Bare Wire 28 swg
Product Code : JA-EE-7620
Constantan Bare Wire 28 swg (SKU JA-EE-7620) is the finest constantan gauge in the JaincoLab wire range: a bare copper-nickel resistance wire of 0.4 mm diameter with a low temperature coefficient, supplied in 125 g reels. Its higher resistance per metre makes it useful for resistance coils of larger value and for showing students how little the resistance of constantan changes when it is warmed. JaincoLab supplies it to school and college physics laboratories.
Specifications
Constantan Bare Wire 28 swg is 0.4 mm in diameter, made of a copper-nickel alloy of low temperature coefficient and supplied bare in 125 g reels, and the listing describes it as suitable for resistance coils.
| Product | Constantan Bare Wire 28 swg |
| SKU | JA-EE-7620 |
| Alloy | Constantan (copper-nickel) |
| Temperature coefficient | Low |
| Gauge | 28 SWG |
| Diameter | 0.4 mm |
| Reel | 125 g |
| Finish | Bare |
| Suitable for | Resistance coils |
Experiments with 28 SWG constantan wire
The 28 SWG constantan wire is wound into higher-value resistance coils and used to compare temperature coefficients: a constantan coil and a copper coil are warmed together and their resistances measured, showing that the constantan value barely changes while the copper value rises.
- Winding higher-value resistance coils
- Comparing the temperature coefficient of constantan with copper
- Resistance and resistivity measurements with a bridge
- Fine resistance wire for student projects and apparatus repairs
Scope of supply and ordering
Supplied as bare 28 SWG constantan wire, 0.4 mm in diameter, in 125 g reels. Heavier constantan gauges, eureka, nichrome and copper wires are separate listings. Accessories, spares and quantities are confirmed on the quotation.
MOQ, lead time and packing are confirmed on each quotation for the number of reels and the delivery destination. JaincoLab supplies resistance wires for individual laboratories and for bulk college and education-department orders, with export to Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What are the diameter and reel weight of 28 SWG constantan wire?
It is 0.4 mm in diameter and is supplied at 125 g per reel.
What makes constantan useful for resistance coils?
It is a copper-nickel alloy of low temperature coefficient, so the resistance of a coil stays nearly constant as it warms.
Which heavier constantan gauges are listed?
Constantan bare wire is also listed in 16 SWG and 22 SWG.
Related products
- Constantan Bare Wire 22 Swg
- Constantan Bare Wire 16 swg
- Eureka Bare Wire 26 swg
- Platinum Resistance Thermometer
More wires, coils and bridges are listed in Electricity Equipment from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order Constantan Bare Wire 28 swg, send the number of reels and the delivery destination through the JaincoLab contact page or email [email protected]. For tender or project supply, see our tenders page.
