Iron Filings for indicating lines of magnetic force, pack of 500 gms.
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Ceramic magnets for good magnetic strength. Half red half blue, spray painted. 50 x 10 x 5 mm.
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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