Magnetic Field Demo, Round Coil
Product Code : LSK-PL-10370
Magnetic Field Demo, Round Coil (SKU LSK-PL-10370) is a magnetic field demonstrator built around a round coil. With current flowing, it produces the field pattern of two conductors passing through a surface, current going up in one and down in the other. It serves school and college lessons on the magnetic effect of current. The demonstrator is manufactured by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and reaches schools, colleges, tender contractors and distributors without a middleman.
Specifications
The unit is a round coil passing through a flat surface, so the field around the two sides of the coil, carrying current in opposite directions, can be mapped on that surface. It is designed for mini plotting compasses, and fine iron filings also show the pattern when the surface is tapped.
| Parameter | Value |
|---|---|
| SKU | LSK-PL-10370 |
| Type | Magnetic field demonstrator, round coil |
| Field shown | Two conductors through a surface, current up in one and down in the other |
| Used with | Mini plotting compasses, or fine iron filings |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Round Coil Magnetic Field Demo
The round coil lets students see that current in a loop creates a magnetic field whose lines circle each side of the wire and run almost straight through the centre. It fits the magnetic effects of current chapter in CBSE Class 10 science and the moving charges and magnetism chapter of Class 12 physics.
- Class 10 science: field pattern of a current-carrying circular loop.
- Class 12 physics: linking the observed pattern to the field on the axis of a circular coil.
- Mapping field direction point by point with mini plotting compasses.
Standard Scope of Supply
The Magnetic Field Demo, Round Coil is supplied as a single unit as described above. Plotting compasses and iron filings are used with it but are separate items, so add them to the quotation if your laboratory does not already stock them.
Packing, MOQ and Lead Time
Ask for one demonstrator for the teacher's bench or several for group work. Science Lab Supplies prepares a quotation that states packing, delivery time and price for the number you need, and electricity and magnetism lab kits for schools, such as compasses and magnets, can be quoted alongside.
Science Lab Supplies is a registered exporter holding an Importer-Exporter Code and is able to ship to buyers in Oman, the Philippines, Nepal, Bangladesh, Zambia and Rwanda. Send your requirement from the contact page or the enquiry cart; tender buyers can also use the lab tender page.
Frequently Asked Questions
What field pattern does the round coil show?
It shows the pattern of two conductors passing through a surface with current going up in one and down in the other, which is how the two sides of a circular loop appear on a flat sheet.
Do I need plotting compasses or iron filings?
The unit is designed for mini plotting compasses. Fine iron filings can also be used; tap the surface gently so the particles vibrate and settle along the field lines.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies makes this demonstrator itself. Production takes place at its factory in the HSIIDC Industrial Area of Saha, Ambala, India, and buyers deal with the manufacturer directly for every quotation.
Can it be included in a school laboratory tender?
Yes. Share the tender quantity and specification, and the item-wise quotation will list this coil with the other physics items you require.
Related Electricity and Magnetism Equipment
Field-mapping lessons need compasses, magnets and more than one conductor shape. These four Physics Lab items complement the round coil and can share one quotation.
- Plotting Compass — 16 mm glass-faced compass for tracing field lines.
- Magnetic Field Demonstration Device — circular coil and straight conductor sets with a compass.
- Pair of Bar Magnets with Iron Filings — bar magnets plus 500 g of filings.
- Magnetic Needle — pivoted needle on a stand for showing field direction.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
