Manganin Resistance Wire 100g

Product Code : SCL-M-11247

The Manganin Resistance Wire 100g is a resistance-alloy wire used for electrical resistance experiments, bridge circuits, laboratory shunts and educational wire-wound components. It is intended for school, college and technical laboratories that require a measured quantity of resistance wire for supervised circuit construction and comparative testing.

Product Description

Manganin is a copper-based alloy containing manganese and nickel. It is used in precision resistance applications because suitable manganin grades combine useful electrical resistivity with a relatively low temperature coefficient of resistance near room temperature. The exact alloy composition and electrical properties of this supplied wire must be confirmed from the manufacturer’s batch specification.

The wire is supplied by weight as a 100 g coil. This format allows technicians and students to cut the length needed for resistance coils, bridge-circuit investigations and related electrical and electronics laboratory experiments. The 100 g value does not represent a fixed wire length because length depends on diameter and alloy density.

Key Features

• 100 g supplied quantity: Suitable for laboratory consumption, replacement stock and project work.
• Manganin resistance alloy: Intended for electrical resistance and precision-resistance applications.
• Low resistance-temperature variation: Suitable grades provide comparatively stable resistance near room temperature.
• Coil supply format: Convenient for measuring, cutting and winding.
• Experimental flexibility: Can be used to investigate how resistance changes with wire length and cross-sectional area.
• Multiple laboratory uses: Applicable to bridge circuits, shunts and experimental resistance coils.
• Reusable learning value: Supports hands-on electrical measurement and circuit-construction activities.

Technical Specifications

What's Included in the Kit

• 1 × Manganin resistance wire coil, 100 g

No resistance former, terminals, connecting leads, bridge apparatus or measuring meter is included unless separately specified.

Applications / Uses

• Investigating the relationship between wire length and electrical resistance.
• Comparing the resistance of wires with different diameters or materials.
• Preparing experimental wire-wound resistance elements.
• Constructing suitable low-current laboratory shunts.
• Supporting Wheatstone bridge and resistance-comparison activities.
• Conducting practical work with a meter bridge or Wheatstone bridge.
• Demonstrating resistance measurement with a plug-type resistance box.

How to Use the Manganin Resistance Wire 100g

1. Confirm the wire diameter, resistance per metre and safe current rating.
2. Calculate or measure the approximate length required for the experiment.
3. Cut the wire using appropriate laboratory cutters.
4. Mount the wire without creating sharp bends, kinks or overlapping turns.
5. Clean or prepare only the connection ends where necessary.
6. Connect the wire to a switched-off, current-limited low-voltage circuit.
7. Measure voltage and current using suitable meters, then calculate or compare resistance.
8. Disconnect the supply before changing wire length or circuit connections.

Safety note: Do not connect the wire directly to mains electricity. Excessive current can cause rapid heating and change the wire resistance or damage the apparatus.

Care & Maintenance

• Keep the wire dry and protected from chemicals, dust and corrosion.
• Store unused wire neatly wound to prevent tangling and kinking.
• Avoid repeated sharp bending, which can weaken or break thin wire.
• Label remaining coils with the confirmed gauge, alloy grade and batch details.

Why Choose Lab Equipments Ambala

Lab Equipments Ambala manufactures and exports scientific and educational laboratory equipment from Ambala, India. Its range includes physics apparatus, electrical trainers, measuring equipment and classroom experiment accessories. The company supports institutional and export requirements for laboratory procurement. Buyers should confirm the manganin grade, wire diameter and electrical data before placing an order.

Frequently Asked Questions

What is Manganin Resistance Wire 100g used for?

It is used for resistance experiments, bridge circuits, laboratory shunts and experimental wire-wound resistance components.

What is manganin made from?

Manganin is generally a copper–manganese–nickel alloy. The exact percentage composition varies by alloy grade and should be confirmed for the supplied product.

Why is manganin used for resistance experiments?

Suitable manganin grades provide useful resistivity and comparatively low resistance variation with temperature near room temperature.

How long is a 100 g coil of manganin wire?

The length cannot be determined from weight alone. It depends primarily on the wire diameter and the density of the supplied alloy.

Can this wire be used with a meter bridge?

It may be used in appropriate resistance investigations, provided its gauge, mounting arrangement and electrical values suit the experiment.

Can manganin wire be connected directly to mains electricity?

No. It should be used only in a properly designed, current-limited low-voltage circuit under qualified supervision.

Explore the complete range of physics laboratory equipment from Lab Equipments Ambala for related resistance-measurement apparatus and classroom circuit accessories.