The U-Core Magnetic Field Apparatus is a physics laboratory instrument used to demonstrate how an electric current produces a magnetic field around a coil and magnetic core. It is intended for supervised school and college experiments involving electromagnetism, magnetic poles, attraction, field strength and electromagnetic lifting effects.
Product Description
The STEMAids U-Core Magnetic Field Apparatus uses a U-shaped magnetic core with compatible coil components to form an educational electromagnet. When an approved electrical current passes through the coil windings, the core concentrates the magnetic field and develops opposite magnetic poles at its open ends.
The apparatus gives students a visible and testable way to connect electric current with magnetic effects. Depending on the supplied configuration, it may support investigations involving magnetic attraction, polarity reversal, armature holding force, coil connections and the influence of current on electromagnet strength. The exact configuration must be verified before publication or procurement.
Key Features
- U-shaped magnetic core: Provides a defined magnetic path for classroom electromagnet demonstrations.
- Hands-on field investigation: Helps students observe how current in a coil produces magnetic effects.
- Polarity demonstration: Supports investigation of how reversing current can reverse magnetic poles.
- Visible attraction effect: Can demonstrate the attraction of compatible ferromagnetic objects.
- Reusable laboratory apparatus: Suitable for repeated teacher-led lessons when operated within confirmed electrical limits.
- Curriculum-relevant design: Supports electricity, magnetism, electromagnets and electromagnetic applications.
- Suitable for comparative experiments: Students can study the effects of changing current, coil connections or core configuration where permitted.
Technical Specifications
| Specification | Detail |
|---|---|
| Product name | U-Core Magnetic Field Apparatus |
| Brand | STEMAids |
| Product category | Electricity and magnetism laboratory apparatus |
| Demonstrated principle | Magnetic field produced by an electric current |
| Core configuration | U-shaped core |
| Product-specific standards | No product-specific standard or certification confirmed |
What’s Included in the Kit
- One U-shaped magnetic core.
- Coil or coil pair
- Armature, keeper or load-bearing bar .
- Connecting leads
- Instruction sheet
- Power supply, compass and test objects are not confirmed as included.
Applications / Uses
- Demonstrating the magnetic field produced by a current-carrying coil.
- Identifying the north and south poles of an electromagnet using a compass.
- Observing the attraction of suitable iron or steel objects.
- Investigating how current direction affects magnetic polarity.
- Comparing magnetic strength under approved coil or supply configurations.
- Explaining lifting magnets, relays, electric bells and other electromagnet applications.
How to Use the U-Core Magnetic Field Apparatus
- Place the apparatus on a stable, dry and non-metallic laboratory surface.
- Inspect the coils, leads, terminals and core for damage.
- Connect the coils according to the approved experiment diagram.
- Connect the apparatus to a current-limited, low-voltage laboratory power supply within the confirmed rating.
- Switch on the supply briefly and test the magnetic effect with a compass or suitable ferromagnetic object.
- Reverse the current connections where the experiment requires a polarity comparison.
- Switch off and disconnect the supply before changing the coil arrangement or touching the terminals.
Safety note: Never connect the apparatus directly to mains electricity. Coils may become hot during prolonged operation or excessive current. Use short operating periods, current limitation and trained supervision.
Care & Maintenance
- Disconnect the power and allow the coils to cool before storage.
- Store the core and coils in a clean, dry cabinet to reduce corrosion and insulation damage.
- Do not pull the apparatus by its leads or force coils onto the core.
- Stop using the apparatus if the winding insulation, terminals or connecting leads are damaged.
Why Choose STEMAids
STEMAids supplies scientific laboratory apparatus, STEM kits and educational models for schools, colleges and institutional programmes. The brand is operated by Eduscope Smart Learning Solutions Private Limited, a New Delhi-based manufacturer that also handles bulk, tender and export requirements. Buyers can explore related physics laboratory equipment, hands-on STEM kits, electromagnetism and electrical kits and the complete STEMAids science equipment catalogue. Electrical ratings and supplied components should be confirmed before ordering.
Frequently Asked Questions
What is a U-Core Magnetic Field Apparatus used for?
It is used to demonstrate electromagnetism, magnetic polarity, attraction and the magnetic field produced by a current-carrying coil.
How does a U-core electromagnet work?
Current flowing through the coils produces a magnetic field. The U-shaped ferromagnetic core concentrates the magnetic flux and forms magnetic poles at its ends.
Does the apparatus include two coils?
The number of coils is not confirmed for this specific product. Check the approved packing list before publication or purchase.
Can students test magnetic field direction?
Yes. A suitable compass can be placed near the poles to observe field direction and the effect of reversing the current.
What power supply is required?
The required voltage and maximum current are not confirmed. Use only a current-limited laboratory supply that matches the manufacturer-approved rating.
Can the electromagnet remain switched on continuously?
Not unless continuous operation is specifically approved. Coil windings can overheat, so classroom use should generally involve short energising periods and temperature monitoring.
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