Nová methoda k měření okamžitých hodnot střídavého proudu. ] 1 



proved to be very coiivenient for fast opérations, though they were 

 only improvised and not for précise adjustement accomplished. 



The magnetic coil, constants of which vere observed by win- 

 ding it, was cooled with flowing water of constant température and 

 contained in his axis a tube filled with benzene. The magnetic rota- 

 tion a due to the intensity i was 



a — 60*01 i {a. in minutes), 



or very nearly given by the samé number as i, if a measured in degrees. 

 Table 2 (see page 8.) contains two séries of measurements, doně 

 with a dynamo (having four pôles) regulated in one case to 50 and in 

 the other to 70 volts. The fig. 4. shows two sinusoïdal curves coa- 

 structed from the numbers of table 2. 



