Manganin Wire (100gm)
Product Code : SCL-EAE-11246
Quick answer: Manganin Wire (100 g) is a resistance wire for physics practicals where a steady resistance is needed. Its resistance changes very little with temperature, so it is used for resistivity experiments, resistance-versus-length studies and for winding resistance coils and standards. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Detail |
|---|---|
| Wire type | Manganin resistance wire |
| Pack weight | 100 g (nominal) |
| Category | Electrical laboratory consumable |
Gauge, diameter, length per pack and resistance per metre are not listed on this page; state the gauge needed when emailing [email protected].
Uses
Manganin is a copper-manganese-nickel alloy with a very small temperature coefficient of resistance, so a length of manganin wire keeps practically the same resistance while the current warms it slightly. That is why it is the usual choice for standard resistors and for the coils inside resistance boxes and bridges.
- Choose the wire gauge the experiment requires.
- Inspect the wire for kinks or surface damage and straighten it.
- Measure the required length with a metre scale and cut it cleanly.
- Clamp the wire between terminals in a low-voltage circuit and measure its diameter with a screw gauge.
- Record voltage and current, then calculate R = V/I and the resistivity rho = R A / L.
Repeating the readings for several lengths gives a straight-line graph of R against L, confirming that the resistance of a uniform wire is proportional to its length.
Key features
- Manganin resistance alloy with a very low temperature coefficient
- Suited to resistivity and resistance-versus-length experiments
- Used to wind resistance coils and standard resistors
- Cut to length as each practical requires
- 100 g nominal pack for laboratory stores and class distribution
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the manganin wire (100 g) at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Electrical and Electronics products
- Constantan Wire (100gm) (SCL-EAE-11251)
- Nichrome Wire (100gm) (SCL-EAE-11252)
- Electric Bell Demonstration (SCL-EAE-11257)
- Potentiometer Apparatus (SCL-EAE-11258)
- Step Down Transformer (SCL-EAE-11259)
- Resistance Coil (SCL-EAE-11260)
The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
Why is manganin wire used for standard resistances?
Its resistance changes very little with temperature, so a manganin coil keeps its value during use. This makes it suitable for resistance boxes, bridges and standard resistors.
What gauge is the manganin wire?
The gauge, diameter and length per pack are not listed on this page. State the gauge needed when emailing [email protected].
What is the price of the manganin wire (100 g)?
Prices are not published on the website. Add the manganin wire (100 g) to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11246 and the quantity, to receive a quotation.
Does Lab Exports manufacture the manganin wire (100 g)?
Yes. Lab Exports manufactures the manganin wire (100 g) at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11246.
Request a quote
Email [email protected] with the house code SCL-EAE-11246 and the quantity, or add the manganin wire (100 g) to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
