A former with terminals and engraved circle marked 0 – 180° – 0 figured every 45°, wound with 30 turns of insulated copper wire, complete with a magnetic needle 75 mm long and a pivot for the needle.
A kit of magnets and accessories in a storage tray.
Contents :
1. One Horseshoe magnet, 100 mm, with keepers.Two ceramic bar magnets, 75 mm long.
2. Three ceramic ring magnets, 38 mm diameter
3. Two plotting compasses clear both sides, 19 mm diameter
4. One lodestone specimen.
5. One pack Iron Filing.
6. One each strip of Iron, Aluminium, Zinc and Copper metal.
This demonstrates the action of electric current on a magnet.
A cobalt steel needle with agate bearing supported by pivot is mounted on a plastic base and surrounded by rectangular frame fitted with terminals.
This apparatus spins an electrically charged brass wheel spin, without the aid of a motor.
When the wheel electrified by a voltage source (battery), the slotted brass disc sets up eddy currents throughout the structure.
This electricity is then attracted to 4 strong neodymium magnets, causing the wheel to spin.
For ordinary magnets, iron bars, strips etc.
Consists of a 250 mm long solenoid wound with insulated copper wire and mounted on a base, with switch and 4mm terminals.
Operating voltage is 12 V A.C. or D.C. At 6A max.
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