Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 256
nother; par-allel currents in ojJj^osite directionsrepel one another. An interesting ilhistratiou of theformer part of tliis law can be ar-ranged as in Figure ir)2. A bat-tery wire is bent in the form of aspiral coil. At a the wire is broken,and one end dips just below the surface of niercurv in a… … 238 ELECTRICITY AND MAGNETISM. all parts of the coil that are adjacent. The attraction thatfollows will cause the coU to contract and lift one pole out ofthe mercury and break the circuit. The circuit broken, theattraction ceases, and the coil is drawn down again by the forceof gravity, and closes…
Physics
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