The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 126
Fig. 99 Scale \ Fig. 100 liable to damage by lightning, as a moving charge of electricityhas a property similar to the inertia of a moving body, tendingto move in a straight line, and not deviate, which a chargehas to do when passing through the turns of a coil. A light-ning charge will, when the…
Telephone
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