Quick Answer: Magnetism Teaching Needle Apparatus is a single magnetised needle on a central pivot, raised on a support so that its resting direction and its deflection near magnets can be seen by a whole class.
Last updated: October 2026
Key Features
Single magnetic-needle demonstration unit
Needle rotates freely about a central pivot
Raised support keeps the needle clear of the base
No electrical supply needed for permanent-magnet demonstrations
Responds to bar magnets, electromagnets and current-carrying conductors
Technical Specifications
Specification
Value
Product format
Single magnetic-needle demonstration unit
Learning principle
Alignment and deflection of a magnetised needle in a magnetic field
Needle movement
Free rotation about a central pivot
About This Product
Once the needle has settled, each pole of a bar magnet is brought slowly towards it and the direction and amount of deflection are recorded. In Magnetism lessons on compass action, poles, attraction and repulsion, it can also show the field around an electromagnet or current-carrying wire, preparing students for work with a tangent galvanometer.
Frequently Asked Questions
Q1. Does the Magnetism Teaching Needle Apparatus need electricity? No supply is needed for basic work with permanent magnets. A separate electrical set-up is required only when studying the field of a coil or current-carrying conductor.
Q2. How should the apparatus be set up before a reading? Place it on a level, non-magnetic table away from iron objects, magnets and energised equipment, check that the needle turns freely without touching the stand, and let it settle before bringing a magnet near.
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