Search Coil
Product Code : LSK-PL-10287
Search Coil (SKU LSK-PL-10287) is a 3300-turn coil on a hand-held wand that detects alternating magnetic fields: a field passing along its axis induces an e.m.f. that can be read on an oscilloscope or AC millivoltmeter. It is used in electromagnetic induction work in senior secondary and college physics. Science Lab Supplies manufactures the coil at its Saha, Ambala factory, Plot 448, HSIIDC Industrial Area, India, and offers it directly to schools, colleges, contractors and distributors.
Specifications
The coil has 3300 turns and is mounted on a wand so it can be moved and turned by hand around a field source. Flying leads end in 4 mm plugs for connection to an oscilloscope or AC millivoltmeter, which displays the induced e.m.f.
| Parameter | Value |
|---|---|
| SKU | LSK-PL-10287 |
| Coil | 3300 turns |
| Mounting | On a wand |
| Leads | Flying leads with 4 mm plugs |
| Detects | Alternating magnetic fields passing axially through the coil |
| Read-out | Oscilloscope or AC millivoltmeter (not included) |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Search Coil
Moving the coil around a transformer, solenoid or AC-carrying wire shows where the alternating field is strong and which way it points, because the induced e.m.f. is greatest when the field runs along the coil axis. It supports Class 12 electromagnetic induction and B.Sc. and diploma magnetism practicals.
- Class 12 physics: Faraday's law of induction.
- Mapping the alternating field around a coil or transformer core.
- Induced e.m.f. against the angle between coil axis and field.
- Checking stray fields from AC equipment.
Standard Scope of Supply
Each Search Coil is supplied as a single unit: the 3300-turn coil on its wand, with flying leads fitted with 4 mm plugs. The oscilloscope or AC millivoltmeter used to read the induced e.m.f., and the AC field source, are separate items that can be added to the quotation.
Packing, MOQ and Lead Time
A quotation can cover one coil for a teacher's demonstration or a set for student groups, and it gives the packing, delivery time and price for that quantity. Oscilloscopes, field coils and other electricity and magnetism lab kit for schools can be quoted with it.
Science Lab Supplies holds an Importer-Exporter Code; as a registered exporter it can ship to buyers in Rwanda, South Africa, Qatar, Sri Lanka, Vietnam and Malaysia. To ask about the coil, use the contact page; to request prices for several items at once, the enquiry cart; for tender purchasing, the lab tender page.
Frequently Asked Questions
What do I need to read the Search Coil?
An oscilloscope or an AC millivoltmeter. The coil's flying leads end in 4 mm plugs for connection to the instrument's input, and the display shows the induced e.m.f.
Does it work with a steady magnetic field?
A steady field only induces an e.m.f. while the coil is moving through it. The coil is intended for alternating fields, where the changing field induces a continuous e.m.f. that is easy to display.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the manufacturer of this coil, which is made and assembled at its factory in Saha, Ambala, India. Orders and quotations are handled by the maker, not a distributor.
Why does the coil have so many turns?
Each turn adds to the induced e.m.f., so 3300 turns give a measurable signal from modest alternating fields, which is why search coils of this kind are used with sensitive meters or oscilloscopes.
Related Electromagnetism Equipment
A search coil needs a changing field to detect and an instrument to show the result. The four items below provide field sources, an induction demonstration and a display, so an electromagnetic induction practical can be set up from one quotation.
- Oscilloscope — colour-display instrument for viewing the induced signal.
- Induction Coils with Cores — 5 A coils for Faraday's law demonstrations.
- Magnetic Field Demo, Round Coil — field pattern of two current-carrying conductors.
- Lenz’s Law — open and closed loops for induction with a magnet.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
