ts, it is indispensable to take precautions is spoken of. A current is rated by amperes, not by dition of sharp dust, and intensely heated—rush against the phenomena of induction. It might seem through the insignificant crannies between the shot as if the most advantageous means for this purpose… … few discharges. Soft tough metals resist abrasion ex- Jtesbabmci^iooe Ohms ' Currant: Impere ceedingly well. Thus, for instance, it is very difficult SECTION OF A PARIS SEWER. HIGH AND LOW TENSION ELECTRIC CIRCUITS. to cut copper on a fine emery wheel. Lead cannot be so cut at all. The end of a…
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