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Electromagnet for Demo
Electromagnet for Demo (Product Code: SCL-385/091) is a U-shaped demonstration electromagnet used to show how an electric current produces magnetism in school and college physics classes. Its iron core of circular section carries two enamelled copper coils joined in series, with an armature and carrying hook for lifting demonstrations, and it operates on 3–6 V DC. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | U-shaped demonstration electromagnet |
| Core | Iron, U-shaped, of circular section |
| Coils | Two coils of enamelled copper wire, one on each arm, joined in series |
| Accessories | Armature and carrying hook |
| Operating supply | 3–6 V DC |
| Product code | SCL-385/091 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is a Demonstration Electromagnet Used For?
When the coils are connected to a low-voltage DC supply, the iron core becomes magnetised and pulls the armature across both poles; loads hung from the carrying hook show how firmly it holds. Switching the current off releases the armature at once, which makes the point that an electromagnet’s magnetism lasts only while current flows — a core lesson for any magnetism experiment kit in India.
Teachers also use it with a compass to identify the poles, reverse the supply to show the poles swapping, and sprinkle iron filings on card to reveal the field. Keep the supply within 3–6 V DC, switch on through a key only while demonstrating so the coils do not overheat, and add loads gradually.
What to Specify When Ordering
- The number of electromagnets needed for demonstrations or student groups.
- Whether cells or a DC supply within 3–6 V should be quoted with them.
- Any keys, leads, compasses or iron filings for the same lesson.
OEM Manufacturer
ScienceLab is the trading name of Jain Scientific Equipments Private Limited (CIN U29309HR2020PTC087597), which builds this electromagnet as the OEM. Production takes place at the company’s licensed factory at 449, HSIIDC Industrial Area, Saha, Ambala, Haryana (Factory Licence AMB-ONLINE-CHD-J-414), and units go factory-direct to schools, colleges, dealers and importers. Ask us directly about replacement armatures or repeat quantities, and see the company profile for more.
Related Physics Lab Equipment
Apparatus used in the same magnetism lesson:
- Horse Shoe Magnets — permanent magnets for comparison with the electromagnet.
- Magnetic Compass Small Size — identifies the north and south poles of each arm.
- Iron Filling — reveals the magnetic field pattern around the poles.
- Dry Cell (Rechargeable) 1.5 V — cells in series can supply a voltage within the operating range.
- One Way Key — switches the coil current on only while demonstrating.
The Physics Lab category has more magnetism and electricity apparatus.
Frequently Asked Questions
What voltage does the Electromagnet for Demo need?
The Electromagnet for Demo operates on 3–6 V DC. A few cells in series or a low-voltage DC supply set within that range will magnetise the core, and staying within the range protects the coils from overheating during a lesson.
How are the coils of the Electromagnet for Demo arranged?
The Electromagnet for Demo has two coils of enamelled copper wire, one wound on each arm of its U-shaped iron core, and the coils are joined in series. This arrangement makes the two arm ends act as opposite poles, like a horseshoe magnet.
What are the armature and hook of the Electromagnet for Demo for?
The armature is the iron bar that the Electromagnet for Demo attracts across its two poles, and the carrying hook lets you hang loads from it. Adding loads step by step shows students how strongly the electromagnet holds while current flows.
How can the Electromagnet for Demo show that its magnetism is temporary?
Connect the Electromagnet for Demo through a key, let it hold the armature, then open the key: the armature drops as soon as the current stops. Reversing the supply leads and testing the arm ends with a compass also shows the poles changing.
Who manufactures the Electromagnet for Demo?
The Electromagnet for Demo is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM at its own licensed factory in Saha, Ambala, Haryana, India. It is supplied factory-direct to buyers in India and international markets.
What should an Electromagnet for Demo quotation request include?
An Electromagnet for Demo quotation request should give the quantity, the delivery location and whether cells, a DC supply, keys or compasses are needed too. The manufacturer then quotes directly for the complete demonstration set in one reply.
Request a Quote
Send your Electromagnet for Demo enquiry through the contact page or add it to the enquiry cart. Quotations come directly from the manufacturer in Ambala.
Last updated: 24 September 2026
