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MAGNETIC FIELDS AND FORCES DEMONSTRATIONS 5H10.30 MAGNET AND IRON FILINGS 5H20.05 MAGNET IN EARTH'S FIELD 5H30.10 CATHODE RAY TUBES (CROOKES) 5H30.56 MAGNETIC FIELD MOVES WATER 5H40.10 PARALLEL WIRES- REPULSION 5H40.11 PARALLEL WIRES-ATTRACTION 5H40.32 MAGNETIC FORCE ACCELERATOR (RAIL GUN)
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