Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 564
If the pole of a permanent magnet be carried along from ato M in a direction parallel to the bar, but not touching it, the part of thebar immediately opposite will be a pole of opposite name, and the advanceof this induced pole towards M will be attended with a current in the coil,and its recession… … YiQ.. 275 bar is bent into a ring, the ends, a a, being united. If the ring be made toturn round its centre in its own plane, and near a magnetic pole, it is plainthat when the coil is approaching this pole a current will be produced in it,and when it is receding, an opposite current. Let the…
Inventions
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