Rheostat Nichrome Wire Groove Type
Product Code : LSK-EAE-11116
Rheostat Nichrome Wire Groove Type (SKU LSK-EAE-11116) is a variable resistor with nichrome wire on an insulated porcelain pipe and a sliding brass contact, rated from 0.3 A to 6.5 A. Teachers use it to adjust current or divide a voltage in electricity practicals for senior school, B.Sc. and diploma classes. It is produced by Science Lab Supplies in its factory at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, which deals directly with schools, colleges, tender contractors and distributors.
Specifications
All construction details appear in the table below. Briefly, nichrome wire is wound on a heat-resistant porcelain pipe clamped between bakelite or aluminium supports; a heavy brass block with a double phosphor-bronze contact slides on a guide rod, and three brass terminals allow variable-resistance or potential-divider use.
| Specification | Value |
|---|---|
| SKU | LSK-EAE-11116 |
| Resistance element | Nichrome wire |
| Former | Insulated, heat-resistant special porcelain pipe |
| Winding length | To the length required |
| Type | Groove type |
| Current rating | 0.3 A to 6.5 A (across models) |
| Resistance values | Made in a variety of resistances |
| End supports | Bakelite or aluminium moulding, fixed to the pipe with rod and nuts |
| Sliding contact | Phosphor-bronze, double contact system |
| Slider block | Heavy brass block for smooth movement |
| Guide rod | Tightened with a screw to projections of the supports |
| Terminals | Three brass terminals |
| Terminal connection | One to the sliding contact, two to the ends of the winding |
| Functions | Variable resistance or potential divider |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Nichrome Wire Rheostat
A nichrome rheostat lets students change current smoothly and repeat a reading at several settings, or draw an adjustable voltage from a fixed supply. It belongs on any physics lab equipment list for Class 11 and 12, covering current control in Ohm's law, potentiometer, meter bridge and galvanometer-conversion experiments.
- Class 10 and Class 11–12: adjusting current in steps for Ohm's law readings taken on a Digital Multimeter.
- Galvanometer conversion: limiting the current through a Galvanometer while it is turned into an ammeter or voltmeter.
- Potentiometer and meter bridge practicals: controlling the current through the bridge wire.
- B.Sc. and polytechnic labs: an adjustable potential divider fed from a low-voltage DC source.
Standard Scope of Supply
One rheostat is supplied, complete with its nichrome-wound porcelain pipe, two end supports with rod and nuts, the guide rod, the brass slider block with phosphor-bronze contacts and three brass terminals. Tell us the resistance and current needed; power sources and meters are separate items.
Packing, MOQ and Lead Time
You may ask for one unit or for a quantity in different current ratings for several lab benches. Each Science Lab Supplies quotation gives the packing method, delivery time and price for that quantity, and keys, meters or resistance boxes can be added alongside the rheostat.
Registered as an exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in the UAE, Saudi Arabia, Oman, the Philippines, Nepal and Bangladesh. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Start an enquiry on the contact page, collect items in the enquiry cart, or check the lab tender page for tender buying.
Frequently Asked Questions
What current range does the nichrome rheostat cover?
Models are made with current ratings from 0.3 A to 6.5 A, in a variety of resistances. Pick a rating above the highest current your experiment draws, and state it with the resistance on your enquiry.
How is the sliding contact made?
A heavy brass block carries a double phosphor-bronze contact that moves smoothly on the guide rod. The rod is screwed to projections on the end supports, keeping the contact steady along the winding.
Should I choose this or the constantan rheostat?
The Rheostat, Constantine (Eureka) Wire has the same porcelain-pipe build with a constantan winding rated 0.6 A to 8 A. This nichrome model covers 0.3 A to 6.5 A, so match the choice to your circuit's current.
Is Science Lab Supplies the manufacturer or a trader?
It manufactures the rheostat itself. Winding and assembly take place at its plant in Saha, Ambala, India, and buyers deal with the factory directly when they ask for a quotation.
Related Rheostats, Keys and Resistance Standards
These items work in the same current-control and resistance circuits as a nichrome rheostat: fixed resistance standards, a bridge, and keys that switch or reverse the current. Most come from the Electrical and Electronics range, and all can share a quotation with the rheostat.
- Rheostat — 10 Ω, ±10% tolerance, 320 W continuous, with 4 mm safety sockets.
- Resistance Box Plug Type (Constantan / Manganin Coil) — accuracy down to ±0.02% with manganin coils.
- Decade Resistance Box, Dial Type — 1% metal film decades for AC or DC use.
- Meter Bridge or Wheatstone Bridge With Pencil Jockey — 24 SWG constantan wire clamped to brass end strips.
- Reversing Key Commutator For Lab — brass on a polymer base, 24 V, up to 3 A.
- Brass Four Way Plug Key — 4-way commutator with two brass plugs, up to 5 A.
- Resistance Box Electronic Type — 50, 100, 500 and 1000 ohm versions.
Browse the full Electrical and Electronics range, the Lab Meters range for current and voltage meters, or all physics lab equipment.
Last updated: 9 October 2026
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