Resistance of Electrolytes at High Frequencies. 539 



T 

 ^ . (I— 1 ) passes through the galvanometer branch 



where I =™-. Thus for values o£ I in the neighbourhood 



of I , a galvanometer of high sensitivity can be used to 



measure slight deviations of I from the " Standard value " I . 



§ 5. The application of this apparatus to the measurement 



of resistance will be clear from a consideration of the 



Fie:. 2. 



p.p.farads. 200 400 



following experiments. By a series of preliminary adjust- 

 ments of the coils AB, the apparatus (fig. 1) was made to 

 yield an " anode-current . . . capacity " curve of the form 

 shown in fig. 2. 



An electrolytic resistance * was then introduced at R and 

 the observations made with the electrodes at various distances 

 apart. An examination of the resulting family of curves 

 (fig. 2 ; A, B, C, D, E corresponding to 5, 4, 3, 2, 1 cms. of 



* A straight tube of CuS0 4 (Normal) with adjustable copper disk- 

 electrodes. 



