Single straight conductor, copper wire 3mm dia , mounted on acrylic sheet with socket connections.
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Made of steel 12 mm diameter, in pairs, half red & half blue (for N & S), spray painted, with keepers.
An annular magnet with face poles. Internal dia 12.5 mm, External dia 30 mm, thickness 6.5 mm
Made of steel, half red & half blue ( for N & S ) spray painted, with keepers.
Mariner’s Compass for Physics Lab – Magnetic needle in Aluminium bowl with gimbals in polished wooden box with sliding cover, dia 75 mm approx
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