Decade of Resistance

Product Code : SCL-EI-10644

The Decade Resistance Box is a multi-range electrical resistance instrument from Lab Glassware Manufacturer. This instrument is supplied to physics and electronics laboratories across the Middle East, including Jordan, Lebanon, Iraq, and Oman, supporting resistor substitution, Ohm's law demonstrations, and circuit calibration in school, college, and STEM laboratories.

Quick answer: A Decade Resistance Box lets students and teachers select known resistance values in steps, without repeatedly swapping loose resistors, to study Ohm's law, series and parallel resistance combinations, and the effect of resistance on current and voltage in a low-voltage circuit.

Key Features

• Multi-range decade resistance box for school physics and electronics experiments.
• Useful for Ohm's law, series circuits, parallel circuits, and resistor substitution work.
• Allows quick resistance selection without replacing loose resistors repeatedly.
• Suitable for use with meters, plug-in boards, power supplies, and test leads.
• Helps students compare how different resistance values affect current and voltage.
• Designed for supervised low-voltage laboratory demonstrations.
• Supports practical circuit learning in Electronic Instruments school physics labs.

What's Included

• 1 x Decade Resistance Box
• Protective packing for storage and dispatch
• Operating or handling note, if supplied with the confirmed order

Applications / Uses

• Demonstrating Ohm's law by changing resistance and observing current variation.
• Substituting known resistance values during circuit testing.
• Teaching series and parallel resistance combinations.
• Calibrating or checking simple electrical circuits in student practicals.
• Using with a Test Leads 4mm Set of Ten for classroom wiring demonstrations.
• Pairing with a stabilized low-voltage laboratory power supply for controlled experiments.

How to Use the Decade Resistance Box

1. Check the confirmed resistance range, tolerance, and power rating before use.
2. Keep the power supply switched off while connecting the resistance box.
3. Connect the decade resistance box in the required circuit using suitable terminals and leads.
4. Select the desired resistance value using the provided switches, knobs, or dials.
5. Switch on the circuit and observe current, voltage, or load behaviour with a compatible meter.
6. Change the resistance step by step and record the readings in the practical notebook.
7. Switch off the supply before disconnecting or changing the circuit layout.

Safety note: Do not exceed the confirmed current or power rating. Incorrect connection, overload, or high voltage can heat the resistor network and damage the values or cause failure.

Working with Other Resistance-Teaching Apparatus

The Decade Resistance Box complements the resistance-wire and fixed-resistor demonstrations already in the Electronic Instruments range. Schools building a fuller resistance-teaching sequence often pair it with the 50 Ohm Resistor Based Circuit Element for a fixed-value comparison, the Copper Wire (0.6 Ohm/m) and Iron Wire (3.3 Ohm/m) for conductor-based resistance comparisons, and a Test Leads 4mm Set of Ten for classroom wiring.

Frequently Asked Questions

What is a decade resistance box used for?
A decade resistance box is used to select known resistance values in a circuit. It helps students study Ohm's law, current control, voltage drop, and resistor substitution.

Is a decade resistance box suitable for school physics labs?
Yes. It is suitable for supervised school and college experiments when used with the correct voltage, current, and power limits.

What resistance range does this product have?
Confirm the final range, number of decades, and step value from the approved product specification.

Can it be used with a laboratory power supply?
Yes. It can be used with a compatible low-voltage laboratory power supply, provided the current and power rating of the resistance box are not exceeded.

Can this replace loose resistors in practical circuits?
Yes. It can substitute multiple resistor values during demonstrations, reducing the need to repeatedly insert and remove individual resistors.

Related Products

• 50 Ohm Resistor Based Circuit Element
• Copper Wire (0.6 Ohm/m)
• Iron Wire (3.3 Ohm/m)

Request a Quote

For pricing, minimum order quantity, and export documentation for the Decade Resistance Box, please contact us or submit your requirement via our lab tender page.

Last updated: September 2026