Electromagnet for Sonometer Manufacturer,Supplier and Exporter in India
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Product Code : SCL-M-14578
Indian Lab Suppliers supplies the Electromagnet for Sonometer (Product ID: 14578) as part of its physics magnetism range. It is a U-core electromagnet that drives a steel sonometer wire with alternating current to find the AC supply frequency.
Quick Answer
A soft iron U-shaped core carries two coils of enamelled copper wire, typically 500–1000 turns each, fed with 3–12 V AC depending on model. Placed just below a steel sonometer wire, the core attracts the wire at every current peak in both directions, so the wire is pulled twice per AC cycle. Students move the bridges until the wire resonates with large amplitude; the wire’s frequency 2f then equals (1/2l)√(T/m), from which the supply frequency f is calculated. The wire must be steel or another magnetic material; copper wire is not attracted. The coils sit on a wooden or powder-coated metal base with brass binding posts. Please confirm turns, voltage and drive source at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Core | Soft iron, U-shaped |
| Coils | Two, enamelled copper, typically 500–1000 turns each |
| Supply | 3–12 V AC (by model) |
| Drive frequency | Mains frequency, or up to 100 Hz from a signal generator |
| Base | Wood or powder-coated metal |
| Terminals | Brass binding posts |
Where This Is Used
Used with the Step Down Transformer (For Sonometer Experiment) (Product ID: 14589) in the sonometer AC-frequency experiment; a general-purpose Electromagnet ‘U’ shape (Product ID: 14607) suits electromagnetism demonstrations. Browse the full Magnetism range or related Sound and Resonance products.
Frequently Asked Questions
At what frequency does the wire vibrate?
At twice the AC supply frequency, because the core attracts the wire on both halves of each cycle.
Can it drive a copper wire?
No, the wire must be steel or another magnetic material.
What supply does it need?
3–12 V AC, for example from a step-down transformer.
Related Categories
Magnetism · Sound and Resonance · Physics Lab Equipment
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