24 XXIV. B. Macků: Účinek střídavého proudu na polarisované elektrody. 



increase of the electromotive force of the continuous current. The increase 

 of the characteristic quantity with increasing inteasity / of the 

 alternatig, is giveu in tab. 3; with decreasing of the surface of the 

 électrode (P-j-) in tab. 5 and 6; the second dependence is illustrated 

 in tab. 4. 



The Cathode is less sensitive than the Anode and the characteristic 

 changes of the intensity háve a reversed signe than before (tab. 7). 



If the alternating current of a larger intensity (more than 

 10~4 ampère) affects the anode continually, the intensity increases, 

 decreases very rapidly afterwards until to negative values, returns 

 to positive values a. s. o. this being repeated several times but with 

 greater irregularities (fig. 5). The intensity changes in negative values 

 as sooner as greater is the density of the alternating. This effect 

 partly given by larger intensities, partly by smaler électrodes, is 

 shown in fig. 6, and in fig. 8 respectively. The other causes of the 

 rapid change of the intensity to negativ values are the increasing 

 electromotive force of the polarisiug current (s. the increas of 

 polarisation in fig. 9) and the prolongation of tirae for which the 

 électrodes stuck in the soap (i. e. the progress of oxydation of the 

 ectrodes s. fig. 10). 



The curves showing the course with time hâve rapid passages 

 like phenomena of overcooling or surcharging. 



The changes of the intensity arise partly from the transformation 

 of the alternating to the continuous current, partly probably from the 

 change of the polarisation of the électrodes. 



