Mechanical and marine engineering science ... Specially written as a handbook to the Board of Trade examinations for extra-first-class engineers (1909)
Somerscales, A. N · Glasgow : J. Munro; London, Simpkin, Marshall, Hamilton, Kent · leaf 30
iece of cast iron anda piece of wroughtiron. The rule for thedirection of the cur-rent is also simple.The current flows inthe direction inwhich the metalsappear in the list,that is from thecopper to the iron attheir junction, orfrom iron to zinc, ifthese metals are incontact. Moreover,by reversing… … Fig. 6. A combination of metal plates or materials for the purposeof producing electric currents is called a Primary Battery (or if .28 THE ELECTRIC CURRENT, only one pair of elements is used it is called a Voltaic Cell. Avery common primary battery is that made up of Leclanch^ cells.In figure 6, C…
Naval architecture
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