Magnetic Field Demonstration Device
Product Code : SCL-PL-11833
Magnetic Field Demonstration Device (SKU SCL-PL-11833) is a two-part demonstration set that shows the magnetic field produced by current in a circular coil and in a straight conductor, with a compass, magnetic rod and iron filings for mapping the field. It supports Class 10 and Class 12 lessons on the magnetic effects of current. Science Lab Supplies manufactures both field sets in Saha, Ambala, India, at Plot 448 of the HSIIDC Industrial Area, and the factory quotes schools, colleges, tender contractors and distributors without an agent.
Specifications
The coil set, conductor set and mapping accessories of this field device each take a row in the table. In short, a circular-coil field apparatus and a straight-conductor field apparatus come together, a 16 mm aluminium compass shows field direction, and a 100 mm magnetic rod with iron filings gives a permanent-magnet pattern for comparison.
| Specification | Value |
|---|---|
| SKU | SCL-PL-11833 |
| Circular-coil field apparatus | 1 set |
| Straight-conductor field apparatus | 1 set |
| Compass material | Aluminium |
| Compass diameter | 16 mm |
| Magnetic rod length | 100 mm |
| Iron filings | 500 mg |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Magnetic Field Demonstration Device
With current passed through the coil or the straight wire, iron filings and the compass reveal circular field lines around the conductor and the stronger, more uniform field at the centre of a loop. Students can then relate direction of current to direction of field using the right-hand rule.
- Class 10 science: magnetic field due to a current in a straight conductor and in a circular loop; a Pair of Bar Magnets with Iron Filings adds 500 g of filings for group work.
- Class 12 physics: moving charges and magnetism, field of a circular current loop.
- Comparing a current-produced field with that of the 100 mm magnetic rod or of chrome steel Bar Magnets.
Standard Scope of Supply
One device includes the circular-coil magnetic field apparatus, the straight-conductor magnetic field apparatus, a 16 mm diameter aluminium magnetic compass, a 100 mm magnetic rod and iron filings. A current source and connecting leads can be added to the same quotation on request.
Packing, MOQ and Lead Time
Ask for a price on a single device for teacher demonstrations or on several for group practicals. Each quotation shows how the order is packed, how long delivery takes and the price at that quantity, and it can include a power supply or other items from the range.
Science Lab Supplies has an Importer-Exporter Code and can ship to buyers in Peru, Egypt, Iraq, Nigeria, Kenya and Ghana. Field-demonstration orders can be priced after a note through the contact page or an enquiry cart submission, while the lab tender page serves institutions that buy by tender.
Frequently Asked Questions
Which fields can the Magnetic Field Demonstration Device show?
It shows the field around a straight current-carrying conductor and the field of a circular coil, plus the pattern of a permanent magnet using the 100 mm rod and iron filings.
How is the field direction found?
Place the 16 mm aluminium compass at points around the coil or straight conductor while current flows; the needle shows the field direction at each point, and reversing the current reverses it.
Is Science Lab Supplies the manufacturer or a trader?
Both field sets in this device come from the Science Lab Supplies factory in Saha, Ambala, India, where they are manufactured, so you deal with the maker from enquiry through to dispatch.
How does it differ from the Magnetic Field Lines apparatus?
That apparatus uses a 220 V coil, a 50 x 7 mm magnet and test nails and clips; this device adds a straight-conductor set and a compass for current-field work.
Related Magnetism Equipment
These Physics Lab, Lab Meters and Magnetism Physics items extend the current-and-field topic covered by the device. They add compass plotting, a round-coil demonstration, a tangent galvanometer, Earth's-field work and a wall poster, so a complete magnetism bench can be requested on one quotation.
- Magnetic Field Demo, Round Coil — made for mini plotting compasses; filings show the pattern when the surface is tapped.
- Apparatus for Demonstrating Magnetic Field Lines that Creates a — 50 x 7 mm magnetic rod, 220 V / 50 Hz coil and 500 g of filings.
- Plotting Compass — dial marked with the cardinal and ordinal points.
- Tangent Galvanometer — coils of 2, 50 and 500 turns that rotate on a vertical axis.
- Magnetic Needle on Stand physics Lab — carbon-steel pointer on a low-friction brass pivot.
- Earth Magnetic-Field Study Set — magnetic globe, field viewer and 20 freely movable compasses.
- Poster - Electromagnetic Field — laminated A1 wall poster, 594 x 841 mm.
Browse the full Physics Lab range, the Magnetism Physics range, or all physics lab equipment.
Last updated: 22 October 2026
