Quick Answer: Manganin Resistance Wire 100g is a 100 g coil of copper–manganese–nickel resistance-alloy wire for resistance experiments, bridge circuits, laboratory shunts and wire-wound resistance elements.
Last updated: October 2026
Key Features
Supplied by weight as a 100 g coil
Copper–manganese–nickel resistance alloy
Suitable grades show comparatively low resistance change with temperature near room temperature
Cut to length for resistance coils, shunts and bridge work
Wire only: no former, terminals, leads or meters included
Technical Specifications
Specification
Value
Product type
Electrical resistance-alloy wire
Supplied weight
100 g
Alloy family
Copper–manganese–nickel resistance alloy
Supply form
Wire coil
About This Product
A measured length is cut, mounted without kinks and placed in a current-limited low-voltage circuit, where voltage and current readings give its resistance, for example in meter bridge or Wheatstone bridge practicals. The 100 g quantity in this Magnetism listing does not fix a wire length, because length depends on the diameter and density of the alloy.
Frequently Asked Questions
Q1. How long is the 100 g coil of Manganin Resistance Wire? Length cannot be worked out from weight alone; it depends mainly on the wire diameter and the density of the alloy supplied.
Q2. Why is manganin used for resistance experiments? Suitable manganin grades combine useful electrical resistivity with comparatively low resistance variation with temperature near room temperature.
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