St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 117
room to another, conduSlors must be used. To keep thecurrent from passing into the earth before it reaches itsdestination insulators must be used. The form of condudt-ors and insulators used will depend upon the current and … Fig. 156. many other conditions. It should be remembered thatthe current has to be carried to the lamp or motor,114 HOW ELECTRIC CURRENTS ARE DISTRIBUTED. II5 through which it passes, and then back again to thedynamo, to form a complete circuit. A break anjwhere
Electricity
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