Electrical Constantan Wire 100gm

Product Description

STEMAids Electrical Constantan Wire 100gm provides constantan wire in a stated net quantity of 100 g. Constantan is generally identified as a copper–nickel resistance alloy. It is valued in educational electrical work for its relatively high resistivity and comparatively small change in resistance with temperature over an appropriate operating range.

The wire can support practical study of Ohm’s law, resistance per unit length, series and parallel circuits, potential-divider arrangements and comparisons between conductor materials. Its suitability for a specific circuit depends on the confirmed diameter, length, resistance, alloy composition and safe current limit.

Key Features

• Defined 100 g quantity: Provides a convenient amount for classroom experiments and laboratory preparation.
• Constantan resistance alloy: Suitable for compatible investigations requiring higher resistance than an equivalent copper conductor.
• Low resistance variation with temperature: Supports controlled resistance experiments when used within verified limits.
• Useful for resistivity studies: Helps students examine the relationship between resistance, length and cross-sectional area.
• Easy material allocation: Laboratory staff can issue measured sections to individual groups.
• Suitable for circuit construction: Can be incorporated into approved low-voltage experimental arrangements.
• Reusable offcuts: Clean, undamaged sections may be retained for later demonstrations.

Technical Specifications

What’s Included in the Kit

• One 100 g quantity of constantan wire.
• Coil, bobbin or spool .
• Product label or protective packaging
• No connecting leads, terminals, measuring instruments or power supply are confirmed as included.

Applications / Uses

• Investigating the relationship between wire length and electrical resistance.
• Comparing the resistivity of constantan with copper or other conductor materials.
• Constructing a resistance wire arrangement for supervised Ohm’s law experiments.
• Building potential-divider or bridge-circuit demonstrations.
• Studying series and parallel resistance using measured wire sections.
• Supporting low-voltage STEM projects involving controlled resistance.

How to Use the Electrical Constantan Wire 100gm

1. Confirm the wire diameter, resistance per metre and safe current limit.
2. Measure the required length without stretching or sharply bending the wire.
3. Cut the wire with suitable cutters and secure it on an approved experiment board.
4. Connect the ends using suitable terminals without allowing loose strands or short circuits.
5. Use a current-limited, low-voltage laboratory power supply.
6. Measure voltage and current with correctly rated instruments.
7. Disconnect the supply before changing the wire length or circuit arrangement.

Safety note: Resistance wire can become hot when current passes through it. Do not touch energised wire, exceed the confirmed current rating or connect it directly to mains electricity.

Care & Maintenance

• Store the wire in a dry, labelled container or on its supplied spool.
• Prevent tangling, sharp bends and repeated flexing at the same point.
• Do not reuse wire that is oxidised, kinked, overheated or mechanically damaged.
• Keep different gauges separately labelled because diameter affects resistance per unit length.

Why Choose STEMAids

STEMAids supplies laboratory instruments, experiment materials, educational models and STEM learning kits for schools and institutional laboratories. Its catalogue supports practical teaching across physics, chemistry, biology and mathematics. Buyers can explore related physics laboratory equipment, general laboratory products, STEM experiment kits and the complete STEMAids product range. Electrical specifications should be confirmed before bulk, tender or export procurement.

Frequently Asked Questions

What is Electrical Constantan Wire 100gm used for?

It is used for resistance, resistivity and low-voltage circuit experiments. Students can use measured lengths to study how resistance changes with wire length and diameter.

What is constantan wire made of?

Constantan is generally a copper–nickel alloy. The precise alloy composition of this STEMAids product must be confirmed from its technical specification.

Why is constantan used in resistance experiments?

Constantan has relatively high electrical resistivity and a low temperature coefficient of resistance. These properties help produce measurable resistance without the rapid temperature-related variation found in some other conductors.

How long is 100 g of constantan wire?

The length depends on the wire diameter and alloy density. It cannot be stated accurately until the gauge is confirmed.

Is the constantan wire insulated?

No insulation or surface covering is confirmed. Treat the wire as electrically exposed unless the approved specification states otherwise.

Can constantan wire be connected directly to mains electricity?

No. It should be used only in approved, current-limited, low-voltage laboratory circuits under trained supervision.