. Practical wireless telegraphy; a complete text book for students of radio communication . ect current B to which is connected a resistance R and an ammeter A in series ^^- ^^~ and if the voltage at B is progressively increased, the flow of current as indicated by the ammeter, increases in the direct ratio in accordance with Ohms law. Furthermore, if we plot the results of this experiment in the form of a graph on cross section paper, as in Fig. ISS, we find that a line drawn common to all co-ordinate points located in accord-ance with the data, will be straight anduniform. Let it be noted fr
. Practical wireless telegraphy; a complete text book for students of radio communication . ect current B to which is connected a resistance R and an ammeter A in series ^^- ^^~ and if the voltage at B is progressively increased, the flow of current as indicated by the ammeter, increases in the direct ratio in accordance with Ohms law. Furthermore, if we plot the results of this experiment in the form of a graph on cross section paper, as in Fig. ISS, we find that a line drawn common to all co-ordinate points located in accord-ance with the data, will be straight anduniform. Let it be noted from this curvethat if the voltage be doubled, the currentis doubled and so on. Now if we substitute for the resistance Ra crystal of carborundum D as in Fig. 156,we find first, that the current in one direc-tion with a given impressed voltage ismuch greater than when passed throughthe crystal in the opposite direction and Fig. 155—Apparatus for Determining Volt-ampere ...^nH that if the rnrrpnt flow! in theCliaracteristic of Carborundum Rectifier* secona, tnat II tne current nows m tne. -Characteristic Curvesistance. of Ordinary Re-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
