Primary and Secondary Coil Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-ELA-5403
Jlab Export is a leading Primary and Secondary Coil Apparatus Manufacturer,and suppliers in India
Primary and Secondary Coil Apparatus (code EL-ELA-5403) is a pair of nesting coils for demonstrating induced current in school and college physics labs. The primary coil of insulated copper wire, fitted with terminals, slides inside a secondary coil of fine insulated copper wire, and a soft iron core is included so the electromagnetic effect can be shown as well. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Primary coil | Insulated copper wire wound on a cylinder, fitted with terminals |
| Secondary coil | Fine insulated copper wire wound on a cylinder into which the primary coil fits |
| Core | Soft iron core for inserting in the primary coil (included) |
| Demonstrates | Induced current; with the soft iron core, the electromagnetic effect |
| Quality check | Each apparatus is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| This listing covers | Primary coil, secondary coil and soft iron core; galvanometer, power supply and key are separate items |
| Product code | EL-ELA-5403 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Primary and Secondary Coil Apparatus Used For?
It shows mutual induction: when the current in one coil changes, the changing magnetic field through the other coil induces a current in it. Connect the secondary coil to a sensitive galvanometer and the primary, through a key, to a low-voltage DC supply. Closing the key makes the galvanometer needle kick one way, opening it makes the needle kick the other way, and a steady current gives no deflection — the core idea of electromagnetic induction in CBSE class 10 science and class 12 physics. Sliding the energised primary in and out of the secondary gives the same effect.
Pushing the soft iron core into the primary concentrates the magnetic field, so the induced kicks become noticeably larger, and the primary with its core behaves as an electromagnet that will pick up small iron objects while current flows. Use a supply suited to the coils, switch off between readings so the primary does not heat up, and keep the fine secondary winding away from sharp tools.
What to Specify When Ordering
- Coil details — ask JLab for the turns and dimensions if your experiment or tender needs them.
- Meters and supply — a galvanometer, a low-voltage DC source and a plug key complete the set-up; add them to the enquiry.
- Quantity — the minimum order is 10 sets, often one per student group.
Frequently Asked Questions
What does this apparatus demonstrate?
Induced current, through mutual induction between the two coils, and — with the soft iron core in place — the electromagnetic effect.
Is the soft iron core included?
Yes. The listing includes a soft iron core that fits inside the primary coil.
What else is needed to run the experiment?
A sensitive galvanometer for the secondary coil, a low-voltage DC supply and a key for the primary, and connecting leads. These are not part of this listing; JLab lists them separately.
What should an export quotation request include?
Quantity, destination country and port or city, preferred delivery terms such as FOB or CIF, any packing or labelling needs, and the tender reference if one applies.
Who manufactures this apparatus?
JLab (Jain Laboratory Instruments Pvt Ltd) winds and assembles it at its works in Ambala, Haryana, and quotes for it as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a physics lab equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The coils are produced at its own works rather than bought from a trader, so schools, colleges, dealers and importers buy direct from the maker and each set is inspected before it is packed. JLab exports worldwide and ships to buyers in every region — for instance Rwanda in East Africa, Tunisia in North Africa, Iraq in the Middle East, Uzbekistan in Central Asia and Greece in Southern Europe. Tender information is on the lab tenders page.
Electromagnetic Induction Accessories
- Galvanometer — a sensitive detector for the induced current in the secondary coil.
- Plug Key — for making and breaking the primary circuit.
- Battery Eliminator — a DC supply for the primary coil without dry cells.
- Induction Coil — uses mutual induction to produce a high voltage, for further experiments.
Browse the full Educational Laboratory Apparatus range or the wider Laboratory Apparatus section.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart button, or send the quantity (minimum 10 sets), any galvanometers, keys or power supplies you want with it, and your delivery location through the contact page.
Last updated: 9 October 2026
