Iron Wire

Product Code : SCL-EI-10638

Iron Wire 3.3 Ohm/m from Lab Glassware Manufacturer is an educational resistance wire engineered for demonstrating resistance per metre, current flow, voltage drop, and Ohm’s law in school physics and electronics laboratories. Manufactured and supplied from Ambala, Haryana, India since 1982, Lab Glassware Manufacturer exports resistance-wire teaching materials to schools, colleges, and STEM training institutes across Southern Africa, including South Africa, Zimbabwe, Botswana, and Namibia, supporting institutional procurement and export tenders throughout the region.

Quick answer: Iron Wire 3.3 Ohm/m is a known-resistance wire supplied at 3.3 Ω per metre — more than five times the resistance of Lab Glassware Manufacturer’s Copper Wire 0.6 Ohm/m — letting students compare how conductor material, not just length, changes resistance in supervised school and STEM Ohm’s law practicals.

Key Features

• Known-resistance iron wire rated at 3.3 Ω/m for classroom circuit experiments.
• Useful for teaching Ohm’s law, voltage drop, resistance per unit length, and current control.
• Can be used with cells, switches, ammeters, voltmeters, LEDs, and circuit boards.
• Supports practical comparison with copper, nichrome, or other resistance wires.
• Helps students observe how material and length affect electrical resistance.
• Suitable for physics labs, electronics labs, STEM kits, and project-based learning.
• Designed for supervised educational use with correctly rated low-voltage circuits.

What’s Included

• 1 x Iron Wire 3.3 Ohm/m, as per confirmed supply length
• Protective packing for storage and dispatch
• Optional spool, labels, terminals, activity guide, or circuit accessories — only if specified in the order

Applications / Uses

• Demonstrating resistance per metre in school physics laboratories.
• Teaching Ohm’s law using measured current and voltage readings.
• Comparing iron wire resistance with copper or other conductor wires.
• Observing voltage drop across measured lengths of wire.
• Building low-voltage STEM circuit models and classroom electronics activities.
• Pairing with General Lab Equipment and related scientific lab products for complete laboratory setups.

How to Use Iron Wire 3.3 Ohm/m

1. Measure the required wire length according to the experiment plan.
2. Connect the wire into a compatible low-voltage circuit using suitable clips or terminals.
3. Connect an ammeter in series and a voltmeter across the wire section if readings are required.
4. Apply the recommended low-voltage supply and record current and voltage readings.
5. Change the wire length and compare how resistance affects circuit behaviour.
6. Disconnect the power supply before touching, cutting, or changing the wire connection.

Safety note: Do not use this wire with mains electricity. Iron wire can heat during resistance experiments, so avoid overloading it and allow it to cool before handling.

Care & Maintenance

• Store the wire in a dry, labelled spool or container after use.
• Keep the wire away from moisture to reduce rusting and surface corrosion.
• Do not sharply bend, kink, or repeatedly twist the same wire section.
• Replace damaged, overheated, corroded, burnt, or broken wire before classroom use.

Comparing Conductor Materials

Iron Wire 3.3 Ohm/m is designed to be used alongside Lab Glassware Manufacturer’s Copper Wire 0.6 Ohm/m for a direct material comparison — the same measured length of iron wire carries over five times the resistance of copper, giving students a clear, quantitative lesson in how conductor material affects resistance independent of length. For fixed-value comparisons, students can also bring in the 50 Ohm Resistor Based Circuit Element.

Why Choose Lab Glassware Manufacturer

Lab Glassware Manufacturer supplies educational laboratory products for schools, colleges, universities, science laboratories, and institutional procurement projects. The company supports laboratory glassware, physics apparatus, electronic teaching aids, STEM classroom equipment, and circuit experiment accessories. Buyers can source Iron Wire 3.3 Ohm/m for school tenders, physics practical kits, electronics labs, and export-oriented educational supply across South Africa, Zimbabwe, Botswana, and Namibia. For safe classroom practical work, buyers may also use suitable Safety Protective Wears.

Frequently Asked Questions

What is Iron Wire 3.3 Ohm/m used for?
Iron Wire 3.3 Ohm/m is used for school physics and electronics experiments involving resistance, current flow, voltage drop, conductor comparison, and Ohm’s law.

What does 3.3 Ohm/m mean?
3.3 Ohm/m means the wire has a resistance of 3.3 ohms for every one metre of length. A longer measured length will have proportionally higher resistance if the wire is uniform.

Is this wire suitable for school students?
Yes. It is suitable for supervised school and STEM experiments when used with compatible low-voltage circuits and teacher guidance.

Can it be used for Ohm’s law experiments?
Yes. Students can use it with an ammeter, voltmeter, switch, and low-voltage power supply to study the relationship between voltage, current, and resistance.

Is the wire bare or insulated?
The insulation type should be confirmed before publication or purchase. It may be bare, enamelled, PVC insulated, or supplied in another format depending on the final specification.

What details should be confirmed before purchase?
Confirm the wire length, gauge or diameter, insulation type, tolerance, supply format, packaging quantity, and whether terminals or accessories are included.

Related Products

• Copper Wire 0.6 Ohm/m
• 50 Ohm Resistor Based Circuit Element
• Resistors for Breadboard

Request a Quote

For pricing, bulk school and college orders, or export tender submissions for Iron Wire 3.3 Ohm/m, please contact Lab Glassware Manufacturer or view current lab equipment tenders.

Last updated: September 2026