. Popular electricity magazine in plain English. Dining Room Floor Pushmetal fastened beneath the floor, at the rightplace to direct the nail so that it will rest directlyupon the push button.—■ Maxwell Snavely. 1214 Elementary Electricity for PracticalWorkers By W. T. RYAN Chapter XI.—Measuring Instruments Induction Ammeters and Voltmeters: If asuitably mounted hollow conducting cylinder ordisk is placed in a rotating magnetic field, cur-rents will be induced due to the relative motionof the two. The eddy currents in the cylinder ordisk will produce lines of force which will reacton the rotat
. Popular electricity magazine in plain English. Dining Room Floor Pushmetal fastened beneath the floor, at the rightplace to direct the nail so that it will rest directlyupon the push button.—■ Maxwell Snavely. 1214 Elementary Electricity for PracticalWorkers By W. T. RYAN Chapter XI.—Measuring Instruments Induction Ammeters and Voltmeters: If asuitably mounted hollow conducting cylinder ordisk is placed in a rotating magnetic field, cur-rents will be induced due to the relative motionof the two. The eddy currents in the cylinder ordisk will produce lines of force which will reacton the rotating magnetic field in such a way asto cause rotation. One way of producing such arotating or rather a shifting magnetic field forsingle phase instruments is shown in Fig. Fig. 71. Working Principle of SingleAmmeter The current in the circuit or a certain portion ofit passes through the coil (B) which surroundsthe iron laminated core (I). In the end of theiron core is a slot around one half the core andin this is wound a heavy band of copper (E).The alternating current flowing through (B)induces an alternating flux in the iron the magnetic flux is increasing it will in-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectri, bookyear1912
