Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 140
, the attractive force is continually weakening from the first to the last ring. Sup-port the upper ring upon your finger and remove the magnet.Each ring ceases to be a magnet and the chain is broken intoits separate links. Vary the experiment by using, instead ofthe rings : (1,) Soft iron nails ;… … 310 MAGNETISM. its poles to each other and to the magnet being as shown in Fig.215. A second bar magnet of about the same power, with its polesopposite, is moved along the first magnet. When the — end of thesecond magnet comes over the key, the key drops.
Electricity · Magnetism
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