High-Resistance Coil Unit

Quick answer: The High-Resistance Coil Unit is a fixed-value resistance coil used in school and college electricity experiments — for example, building circuits to verify Ohm’s Law or study current-voltage relationships where a stable, high-value resistance is needed.

Description

The LabEquip High-Resistance Coil Unit provides a known, fixed resistance element for wiring into simple electrical circuits during physics practicals. It is commonly used alongside a battery/cell, ammeter and voltmeter to study current flow, potential difference, and the relationship between voltage, current and resistance.

Because its resistance value is fixed rather than adjustable, it is well suited to experiments where a stable reference resistance is required, as opposed to variable resistance boxes or rheostats used for adjustable-current experiments.

Specifications

Safety Note

Use only with the low-voltage supplies typical of school laboratory circuits. Switch off the circuit before making or changing connections, and avoid touching bare terminals while current is flowing.

Why Choose LabEquip

LabEquip supplies physics lab equipment to schools and colleges, with a straightforward buying process and a sales team that can confirm exact resistance values and specifications before you order. Explore more of our range below:

• LabEquip home page – browse our full lab equipment range
• Electric Generator Demonstration Model – another electricity-focused teaching model
• STEM Kits category – more hands-on classroom teaching resources

Frequently Asked Questions

What is the High-Resistance Coil Unit used for?

It is used to introduce a known, fixed resistance into a circuit for experiments such as verifying Ohm’s Law and studying the relationship between current and voltage.

Is the resistance value adjustable?

No. This is a fixed-value coil, unlike a variable resistance box or rheostat. The exact resistance value is not specified for this listing; please confirm with our sales team before ordering.

What other equipment do I need to use it in an experiment?

Typical circuit experiments pair this coil with a low-voltage cell or battery, a rheostat, an ammeter and a voltmeter, plus connecting wires.

What class level is this suited for?

Fixed resistance coils like this are standard equipment in secondary and higher-secondary school physics laboratories, and in introductory college electricity practicals.

How should I care for the coil unit between experiments?

Store it in a dry place, keep terminals clean and free of corrosion, and avoid mechanical stress on the connecting leads or terminals.

Can I get the exact resistance value before I order?

Yes. Contact our sales team at [email protected] and we will confirm the exact specification for this listing before you place your order.

Last Updated: September 2026