. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . Fig. 31. equal quantities of electricity and then discharged by connectingthem in series -|- to — and — to -j-? the two charges will exactlyneutralize each other and no resultant charge will remain. Tocharge two condensers of unequal capacity with equal quantitiesof electricity requires a higher E. M. F. at the terminals of thesmaller condenser, that is, the E. M. F. applied at the terminalsmust be inversely as t
. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . Fig. 31. equal quantities of electricity and then discharged by connectingthem in series -|- to — and — to -j-? the two charges will exactlyneutralize each other and no resultant charge will remain. Tocharge two condensers of unequal capacity with equal quantitiesof electricity requires a higher E. M. F. at the terminals of thesmaller condenser, that is, the E. M. F. applied at the terminalsmust be inversely as the capacities. If the ratio of the E. M. determined, then the ratio of the capacities of the condensers isalso obtained. These principles are involved in Thomsons method. 154. IdH X u cco HO ELECTRIC WIRING. INSTALLING THE DYNAflO. DjTiamos should be located in a dry place so situated thatthe surrounding alniosphcrc is cool. If the surrounding air lawarm, it reduces the safe carrying capacity of the machine and islikely to allow such temperature to rise in the machine itself as toIurn out either armature or lield, or both. A dynamo should nc^tbe installed -vvlierc any hazardous process is carried on, nor whereit would be exposed to inflammable gases or fljing combustiblomaterials, as the liability to occasional sj^arks from the comnuita-tor or brushes might cause serious explosions. Wherever it is possible, dynamos should be raised or insu-lated above the surrounding floor, on wooden base frames, whichshould be kept filled to prevent the absorption of moisture, andalso kept clean and dry. When it is impracticable to insulate adynamo on account of its great weight, or for any other reason,the Inspection Department of the Board of Fire Underwritershaving juri
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