Demagnetizing and Magnetizing Coil Apparatus
Product Code : SCL-PLE-11645
Quick Answer: The Demagnetizing and Magnetizing Coil Apparatus is a solenoid of insulated copper wire on a hollow non-magnetic former, wide enough for bar magnets and iron samples, that magnetises them on low-voltage DC and demagnetises them on low-voltage AC.
Last updated: 18 October 2026
Key Features
- Insulated copper windings on a hollow non-magnetic mandrel.
- Bore sized for standard bar magnets and ferrous samples.
- Works on low-voltage AC or DC supplies.
- Heat-resistant housing with built-in safety terminals.
Technical Specifications
| Specification | Value |
|---|---|
| Coil | Insulated copper windings on hollow non-magnetic mandrel |
| Bore | Takes standard bar magnets and ferrous samples |
| Supply | Low-voltage AC or DC |
| Housing | Heat-resistant, with safety terminals |
How It Is Used
To magnetise, a steel bar is placed in the coil and a DC current is passed, lining up its magnetic domains; a plotting compass then shows its new poles. To demagnetise, the coil is run on AC and the bar is slowly withdrawn, leaving the domains in random order.
Frequently Asked Questions
How does the Demagnetizing and Magnetizing Coil Apparatus both magnetise and demagnetise?
On DC the coil's steady field aligns the domains of a sample placed in its bore, magnetising it. On AC the alternating field scrambles the domains, demagnetising the sample.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related magnetism apparatus:
- Magnet, Electromagnet,110x9mm dia.with keeper
- Electromagnet ‘U’ shape
- Bar Magnet – Superior Quality
- Plotting Compass, Single Glass Face
- Solenoid Model
JLab India accepts export orders for the Demagnetizing and Magnetizing Coil Apparatus from Saint Lucia, São Tomé and Príncipe, Albania, New Zealand, Senegal and United Arab Emirates.
For a quotation on the Demagnetizing and Magnetizing Coil Apparatus, contact JLab India on +91-8569909696.
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