o observe the following rules: 1. Always keep the armature on a horseshoe magnet. 2. Bar magnets should be laid in pairs with their oppositepoles together, or with bars of soft iron across their endsas keepers. 3. Do not leave the south pole pointing north.4. Never allow a magnet of any kind to… … Fig. 84. upon the paper. The position of th6 magnet will readily be seen. Tapthe paper gently and note how the filings arrange themselves alongdefinite radial lines, coming out ofone pole and by graceful curves en-tering into the other, as in Fig. 84.Note that each of the filings liesalong a line…
Physics
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